diff --git a/extensions/typescript/src/features/quickFixProvider.ts b/extensions/typescript/src/features/quickFixProvider.ts
index 9293818f1b0..24f493e49e5 100644
--- a/extensions/typescript/src/features/quickFixProvider.ts
+++ b/extensions/typescript/src/features/quickFixProvider.ts
@@ -106,7 +106,7 @@ export default class TypeScriptQuickFixProvider implements vscode.CodeActionProv
 	private getCommandForAction(action: Proto.CodeAction): vscode.CodeAction {
 		return {
 			title: action.description,
-			edits: getEditForCodeAction(this.client, action),
+			edit: getEditForCodeAction(this.client, action),
 			command: action.commands ? {
 				command: ApplyCodeActionCommand.ID,
 				arguments: [action],
@@ -115,4 +115,4 @@ export default class TypeScriptQuickFixProvider implements vscode.CodeActionProv
 			diagnostics: []
 		};
 	}
-}
\ No newline at end of file
+}
diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 7fe3e931dd6..802d64df976 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -210,11 +210,11 @@ declare module 'vscode' {
 		title: string;
 
 		/**
-		 * Optional edit that performs the code action.
+		 * A workspace edit this code action performs.
 		 *
-		 * Either `command` or `edits` must be provided for a `CodeAction`.
+		 * *Note* that either an [`edit`](CodeAction#edit) or a [`command`](CodeAction#command) must be supplied.
 		 */
-		edits?: TextEdit[] | WorkspaceEdit;
+		edit?: WorkspaceEdit;
 
 		/**
 		 * Diagnostics that this code action resolves.
@@ -222,9 +222,9 @@ declare module 'vscode' {
 		diagnostics?: Diagnostic[];
 
 		/**
-		 * Optional command that performs the code action.
+		 * A command this code action performs.
 		 *
-		 * Executed after `edits` if any edits are provided. Either `command` or `edits` must be provided for a `CodeAction`.
+		 * *Note* that either an [`edit`](CodeAction#edit) or a [`command`](CodeAction#command) must be supplied.
 		 */
 		command?: Command;
 
@@ -237,7 +237,7 @@ declare module 'vscode' {
 		 * @param title The title of the code action.
 		 * @param edits The edit of the code action.
 		 */
-		constructor(title: string, edits?: TextEdit[] | WorkspaceEdit);
+		constructor(title: string, edit?: WorkspaceEdit);
 	}
 
 	export interface CodeActionProvider {
diff --git a/src/vs/workbench/api/node/extHostLanguageFeatures.ts b/src/vs/workbench/api/node/extHostLanguageFeatures.ts
index 2425ca991c8..3f8e0d8603c 100644
--- a/src/vs/workbench/api/node/extHostLanguageFeatures.ts
+++ b/src/vs/workbench/api/node/extHostLanguageFeatures.ts
@@ -314,9 +314,7 @@ class CodeActionAdapter {
 						title: candidate.title,
 						command: candidate.command && this._commands.toInternal(candidate.command),
 						diagnostics: candidate.diagnostics && candidate.diagnostics.map(DiagnosticCollection.toMarkerData),
-						edits: Array.isArray(candidate.edits)
-							? TypeConverters.WorkspaceEdit.fromTextEdits(resource, candidate.edits)
-							: candidate.edits && TypeConverters.WorkspaceEdit.from(candidate.edits),
+						edits: candidate.edit && TypeConverters.WorkspaceEdit.from(candidate.edit),
 					});
 				}
 			}
diff --git a/src/vs/workbench/api/node/extHostTypeConverters.ts b/src/vs/workbench/api/node/extHostTypeConverters.ts
index f2e7dce967d..8b10ccba4ba 100644
--- a/src/vs/workbench/api/node/extHostTypeConverters.ts
+++ b/src/vs/workbench/api/node/extHostTypeConverters.ts
@@ -241,18 +241,6 @@ export namespace WorkspaceEdit {
 		return result;
 	}
 
-	export function fromTextEdits(uri: vscode.Uri, textEdits: vscode.TextEdit[]): modes.WorkspaceEdit {
-		const result: modes.WorkspaceEdit = { edits: [] };
-		for (let textEdit of textEdits) {
-			result.edits.push({
-				resource: uri,
-				newText: textEdit.newText,
-				range: fromRange(textEdit.range)
-			});
-		}
-		return result;
-	}
-
 	export function to(value: modes.WorkspaceEdit) {
 		const result = new types.WorkspaceEdit();
 		for (const edit of value.edits) {