diff --git a/src/vs/editor/browser/standalone/standaloneLanguages.ts b/src/vs/editor/browser/standalone/standaloneLanguages.ts
index d48d4afb65a..f3f5584a0db 100644
--- a/src/vs/editor/browser/standalone/standaloneLanguages.ts
+++ b/src/vs/editor/browser/standalone/standaloneLanguages.ts
@@ -700,6 +700,7 @@ export function createMonacoLanguagesAPI(): typeof monaco.languages {
 		// enums
 		DocumentHighlightKind: modes.DocumentHighlightKind,
 		CompletionItemKind: CompletionItemKind,
+		SymbolKind: modes.SymbolKind,
 		IndentAction: IndentAction,
 	};
 }
diff --git a/src/vs/editor/common/modes.ts b/src/vs/editor/common/modes.ts
index ae8c1133243..685f2b95c28 100644
--- a/src/vs/editor/common/modes.ts
+++ b/src/vs/editor/common/modes.ts
@@ -458,30 +458,68 @@ export interface TypeDefinitionProvider {
 /**
  * A symbol kind.
  */
-export type SymbolKind =
-	'file' |
-	'module' |
-	'namespace' |
-	'package' |
-	'class' |
-	'method' |
-	'property' |
-	'field' |
-	'constructor' |
-	'enum' |
-	'interface' |
-	'function' |
-	'variable' |
-	'constant' |
-	'string' |
-	'number' |
-	'boolean' |
-	'array' |
-	'object' |
-	'key' |
-	'null' |
-	'enum-member' |
-	'struct';
+export enum SymbolKind {
+	File = 0,
+	Module = 1,
+	Namespace = 2,
+	Package = 3,
+	Class = 4,
+	Method = 5,
+	Property = 6,
+	Field = 7,
+	Constructor = 8,
+	Enum = 9,
+	Interface = 10,
+	Function = 11,
+	Variable = 12,
+	Constant = 13,
+	String = 14,
+	Number = 15,
+	Boolean = 16,
+	Array = 17,
+	Object = 18,
+	Key = 19,
+	Null = 20,
+	EnumMember = 21,
+	Struct = 22
+}
+
+
+/**
+ * @internal
+ */
+export const symbolKindToCssClass = (function () {
+
+	const _fromMapping: { [n: number]: string } = Object.create(null);
+	_fromMapping[SymbolKind.File] = 'file';
+	_fromMapping[SymbolKind.Module] = 'module';
+	_fromMapping[SymbolKind.Namespace] = 'namespace';
+	_fromMapping[SymbolKind.Package] = 'package';
+	_fromMapping[SymbolKind.Class] = 'class';
+	_fromMapping[SymbolKind.Method] = 'method';
+	_fromMapping[SymbolKind.Property] = 'property';
+	_fromMapping[SymbolKind.Field] = 'field';
+	_fromMapping[SymbolKind.Constructor] = 'constructor';
+	_fromMapping[SymbolKind.Enum] = 'enum';
+	_fromMapping[SymbolKind.Interface] = 'interface';
+	_fromMapping[SymbolKind.Function] = 'function';
+	_fromMapping[SymbolKind.Variable] = 'variable';
+	_fromMapping[SymbolKind.Constant] = 'constant';
+	_fromMapping[SymbolKind.String] = 'string';
+	_fromMapping[SymbolKind.Number] = 'number';
+	_fromMapping[SymbolKind.Boolean] = 'boolean';
+	_fromMapping[SymbolKind.Array] = 'array';
+	_fromMapping[SymbolKind.Object] = 'object';
+	_fromMapping[SymbolKind.Key] = 'key';
+	_fromMapping[SymbolKind.Null] = 'null';
+	_fromMapping[SymbolKind.EnumMember] = 'enum-member';
+	_fromMapping[SymbolKind.Struct] = 'struct';
+
+	return function toCssClassName(kind: SymbolKind): string {
+		return _fromMapping[kind] || 'property';
+	};
+})();
+
 
 /**
  * Represents information about programming constructs like variables, classes,
diff --git a/src/vs/editor/contrib/quickOpen/browser/quickOutline.ts b/src/vs/editor/contrib/quickOpen/browser/quickOutline.ts
index 760a8dfdf81..3c294a3a92e 100644
--- a/src/vs/editor/contrib/quickOpen/browser/quickOutline.ts
+++ b/src/vs/editor/contrib/quickOpen/browser/quickOutline.ts
@@ -14,7 +14,7 @@ import { TPromise } from 'vs/base/common/winjs.base';
 import { IContext, IHighlight, QuickOpenEntryGroup, QuickOpenModel } from 'vs/base/parts/quickopen/browser/quickOpenModel';
 import { IAutoFocus, Mode } from 'vs/base/parts/quickopen/common/quickOpen';
 import { ICommonCodeEditor, IRange, ModeContextKeys, EditorContextKeys } from 'vs/editor/common/editorCommon';
-import { SymbolInformation, DocumentSymbolProviderRegistry } from 'vs/editor/common/modes';
+import { SymbolInformation, DocumentSymbolProviderRegistry, symbolKindToCssClass } from 'vs/editor/common/modes';
 import { BaseEditorQuickOpenAction, IDecorator } from './editorQuickOpen';
 import { getDocumentSymbols, IOutline } from 'vs/editor/contrib/quickOpen/common/quickOpen';
 import { editorAction, ServicesAccessor } from 'vs/editor/common/editorCommonExtensions';
@@ -191,7 +191,7 @@ export class QuickOutlineAction extends BaseEditorQuickOpenAction {
 				}
 
 				// Add
-				results.push(new SymbolEntry(label, element.kind, description, element.location.range, highlights, editor, controller));
+				results.push(new SymbolEntry(label, symbolKindToCssClass(element.kind), description, element.location.range, highlights, editor, controller));
 			}
 		}
 
diff --git a/src/vs/monaco.d.ts b/src/vs/monaco.d.ts
index 668abea0329..b5c4c95fa5d 100644
--- a/src/vs/monaco.d.ts
+++ b/src/vs/monaco.d.ts
@@ -4708,7 +4708,31 @@ declare module monaco.languages {
     /**
      * A symbol kind.
      */
-    export type SymbolKind = 'file' | 'module' | 'namespace' | 'package' | 'class' | 'method' | 'property' | 'field' | 'constructor' | 'enum' | 'interface' | 'function' | 'variable' | 'constant' | 'string' | 'number' | 'boolean' | 'array' | 'object' | 'key' | 'null' | 'enum-member' | 'struct';
+    export enum SymbolKind {
+        File = 0,
+        Module = 1,
+        Namespace = 2,
+        Package = 3,
+        Class = 4,
+        Method = 5,
+        Property = 6,
+        Field = 7,
+        Constructor = 8,
+        Enum = 9,
+        Interface = 10,
+        Function = 11,
+        Variable = 12,
+        Constant = 13,
+        String = 14,
+        Number = 15,
+        Boolean = 16,
+        Array = 17,
+        Object = 18,
+        Key = 19,
+        Null = 20,
+        EnumMember = 21,
+        Struct = 22,
+    }
 
     /**
      * Represents information about programming constructs like variables, classes,
diff --git a/src/vs/workbench/api/node/extHostTypeConverters.ts b/src/vs/workbench/api/node/extHostTypeConverters.ts
index aa189c755b1..8f1fcaa927c 100644
--- a/src/vs/workbench/api/node/extHostTypeConverters.ts
+++ b/src/vs/workbench/api/node/extHostTypeConverters.ts
@@ -177,32 +177,32 @@ export const TextEdit = {
 export namespace SymbolKind {
 
 	const _fromMapping: { [kind: number]: modes.SymbolKind } = Object.create(null);
-	_fromMapping[types.SymbolKind.File] = 'file';
-	_fromMapping[types.SymbolKind.Module] = 'module';
-	_fromMapping[types.SymbolKind.Namespace] = 'namespace';
-	_fromMapping[types.SymbolKind.Package] = 'package';
-	_fromMapping[types.SymbolKind.Class] = 'class';
-	_fromMapping[types.SymbolKind.Method] = 'method';
-	_fromMapping[types.SymbolKind.Property] = 'property';
-	_fromMapping[types.SymbolKind.Field] = 'field';
-	_fromMapping[types.SymbolKind.Constructor] = 'constructor';
-	_fromMapping[types.SymbolKind.Enum] = 'enum';
-	_fromMapping[types.SymbolKind.Interface] = 'interface';
-	_fromMapping[types.SymbolKind.Function] = 'function';
-	_fromMapping[types.SymbolKind.Variable] = 'variable';
-	_fromMapping[types.SymbolKind.Constant] = 'constant';
-	_fromMapping[types.SymbolKind.String] = 'string';
-	_fromMapping[types.SymbolKind.Number] = 'number';
-	_fromMapping[types.SymbolKind.Boolean] = 'boolean';
-	_fromMapping[types.SymbolKind.Array] = 'array';
-	_fromMapping[types.SymbolKind.Object] = 'object';
-	_fromMapping[types.SymbolKind.Key] = 'key';
-	_fromMapping[types.SymbolKind.Null] = 'null';
-	_fromMapping[types.SymbolKind.EnumMember] = 'enum-member';
-	_fromMapping[types.SymbolKind.Struct] = 'struct';
+	_fromMapping[types.SymbolKind.File] = modes.SymbolKind.File;
+	_fromMapping[types.SymbolKind.Module] = modes.SymbolKind.Module;
+	_fromMapping[types.SymbolKind.Namespace] = modes.SymbolKind.Namespace;
+	_fromMapping[types.SymbolKind.Package] = modes.SymbolKind.Package;
+	_fromMapping[types.SymbolKind.Class] = modes.SymbolKind.Class;
+	_fromMapping[types.SymbolKind.Method] = modes.SymbolKind.Method;
+	_fromMapping[types.SymbolKind.Property] = modes.SymbolKind.Property;
+	_fromMapping[types.SymbolKind.Field] = modes.SymbolKind.Field;
+	_fromMapping[types.SymbolKind.Constructor] = modes.SymbolKind.Constructor;
+	_fromMapping[types.SymbolKind.Enum] = modes.SymbolKind.Enum;
+	_fromMapping[types.SymbolKind.Interface] = modes.SymbolKind.Interface;
+	_fromMapping[types.SymbolKind.Function] = modes.SymbolKind.Function;
+	_fromMapping[types.SymbolKind.Variable] = modes.SymbolKind.Variable;
+	_fromMapping[types.SymbolKind.Constant] = modes.SymbolKind.Constant;
+	_fromMapping[types.SymbolKind.String] = modes.SymbolKind.String;
+	_fromMapping[types.SymbolKind.Number] = modes.SymbolKind.Number;
+	_fromMapping[types.SymbolKind.Boolean] = modes.SymbolKind.Boolean;
+	_fromMapping[types.SymbolKind.Array] = modes.SymbolKind.Array;
+	_fromMapping[types.SymbolKind.Object] = modes.SymbolKind.Object;
+	_fromMapping[types.SymbolKind.Key] = modes.SymbolKind.Key;
+	_fromMapping[types.SymbolKind.Null] = modes.SymbolKind.Null;
+	_fromMapping[types.SymbolKind.EnumMember] = modes.SymbolKind.EnumMember;
+	_fromMapping[types.SymbolKind.Struct] = modes.SymbolKind.Struct;
 
 	export function from(kind: vscode.SymbolKind): modes.SymbolKind {
-		return _fromMapping[kind] || 'property';
+		return _fromMapping[kind] || modes.SymbolKind.Property;
 	}
 
 	export function to(kind: modes.SymbolKind): vscode.SymbolKind {
diff --git a/src/vs/workbench/parts/quickopen/browser/gotoSymbolHandler.ts b/src/vs/workbench/parts/quickopen/browser/gotoSymbolHandler.ts
index 571ff9579f9..2c9162826b0 100644
--- a/src/vs/workbench/parts/quickopen/browser/gotoSymbolHandler.ts
+++ b/src/vs/workbench/parts/quickopen/browser/gotoSymbolHandler.ts
@@ -21,7 +21,7 @@ import { IWorkbenchEditorService } from 'vs/workbench/services/editor/common/edi
 import { IQuickOpenService } from 'vs/platform/quickOpen/common/quickOpen';
 import { Position, IEditorInput, ITextEditorOptions } from 'vs/platform/editor/common/editor';
 import { getDocumentSymbols } from 'vs/editor/contrib/quickOpen/common/quickOpen';
-import { DocumentSymbolProviderRegistry, SymbolInformation } from 'vs/editor/common/modes';
+import { DocumentSymbolProviderRegistry, SymbolInformation, symbolKindToCssClass } from 'vs/editor/common/modes';
 import { getCodeEditor } from 'vs/editor/common/services/codeEditorService';
 
 export const GOTO_SYMBOL_PREFIX = '@';
@@ -451,7 +451,7 @@ export class GotoSymbolHandler extends QuickOpenHandler {
 
 			// Show parent scope as description
 			const description: string = element.containerName;
-			const icon = element.kind;
+			const icon = symbolKindToCssClass(element.kind);
 
 			// Add
 			results.push(new SymbolEntry(i,
diff --git a/src/vs/workbench/parts/search/browser/openSymbolHandler.ts b/src/vs/workbench/parts/search/browser/openSymbolHandler.ts
index fac454979c1..7c37d08c221 100644
--- a/src/vs/workbench/parts/search/browser/openSymbolHandler.ts
+++ b/src/vs/workbench/parts/search/browser/openSymbolHandler.ts
@@ -17,7 +17,7 @@ import strings = require('vs/base/common/strings');
 import { Range } from 'vs/editor/common/core/range';
 import { EditorInput, IWorkbenchEditorConfiguration } from 'vs/workbench/common/editor';
 import labels = require('vs/base/common/labels');
-import { SymbolInformation } from 'vs/editor/common/modes';
+import { SymbolInformation, symbolKindToCssClass } from 'vs/editor/common/modes';
 import { IResourceInput } from 'vs/platform/editor/common/editor';
 import { IWorkbenchEditorService } from 'vs/workbench/services/editor/common/editorService';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
@@ -56,7 +56,7 @@ class SymbolEntry extends EditorQuickOpenEntry {
 	}
 
 	public getIcon(): string {
-		return this._bearing.kind;
+		return symbolKindToCssClass(this._bearing.kind);
 	}
 
 	public getResource(): URI {
@@ -106,8 +106,8 @@ class SymbolEntry extends EditorQuickOpenEntry {
 		const elementAName = elementA.getLabel().toLowerCase();
 		const elementBName = elementB.getLabel().toLowerCase();
 		if (elementAName === elementBName) {
-			let elementAType = elementA._bearing.kind;
-			let elementBType = elementB._bearing.kind;
+			let elementAType = symbolKindToCssClass(elementA._bearing.kind);
+			let elementBType = symbolKindToCssClass(elementB._bearing.kind);
 			return elementAType.localeCompare(elementBType);
 		}