diff --git a/src/vs/vscode.d.ts b/src/vs/vscode.d.ts
index ee6e909751e..b6d6d242d53 100644
--- a/src/vs/vscode.d.ts
+++ b/src/vs/vscode.d.ts
@@ -2362,8 +2362,9 @@ declare namespace vscode {
 		 * Reveal this channel in the UI.
 		 *
 		 * @param column The column in which to show the channel, default in [one](#ViewColumn.One).
+		 * @param preserveFocus When `true` the channel will not take focus.
 		 */
-		show(column?: ViewColumn): void;
+		show(column?: ViewColumn, preserveFocus?: boolean): void;
 
 		/**
 		 * Hide this channel from the UI.
@@ -2708,9 +2709,10 @@ declare namespace vscode {
 		 * @param document A text document to be shown.
 		 * @param column A view column in which the editor should be shown. The default is the [one](#ViewColumn.One), other values
 		 * are adjusted to be __Min(column, columnCount + 1)__.
+		 * @param preserveFocus When `true` the editor will not take focus.
 		 * @return A promise that resolves to an [editor](#TextEditor).
 		 */
-		export function showTextDocument(document: TextDocument, column?: ViewColumn): Thenable<TextEditor>;
+		export function showTextDocument(document: TextDocument, column?: ViewColumn, preserveFocus?: boolean): Thenable<TextEditor>;
 
 		/**
 		 * Create a TextEditorDecorationType that can be used to add decorations to text editors.
diff --git a/src/vs/workbench/api/common/extHost.api.impl.ts b/src/vs/workbench/api/common/extHost.api.impl.ts
index 2808970b9f6..f24d9b2880e 100644
--- a/src/vs/workbench/api/common/extHost.api.impl.ts
+++ b/src/vs/workbench/api/common/extHost.api.impl.ts
@@ -160,8 +160,8 @@ export class ExtHostAPIImplementation {
 			get visibleTextEditors() {
 				return pluginHostEditors.getVisibleTextEditors();
 			},
-			showTextDocument(document: vscode.TextDocument, column: vscode.ViewColumn): TPromise<vscode.TextEditor> {
-				return pluginHostEditors.showTextDocument(document, column);
+			showTextDocument(document: vscode.TextDocument, column?: vscode.ViewColumn, preserveFocus?: boolean): TPromise<vscode.TextEditor> {
+				return pluginHostEditors.showTextDocument(document, column, preserveFocus);
 			},
 			createTextEditorDecorationType(options:vscode.DecorationRenderOptions): vscode.TextEditorDecorationType {
 				return pluginHostEditors.createTextEditorDecorationType(options);
diff --git a/src/vs/workbench/api/common/extHostEditors.ts b/src/vs/workbench/api/common/extHostEditors.ts
index 0c68f7b057c..1e81644b317 100644
--- a/src/vs/workbench/api/common/extHostEditors.ts
+++ b/src/vs/workbench/api/common/extHostEditors.ts
@@ -75,8 +75,8 @@ export class ExtHostEditors {
 		return this._onDidChangeActiveTextEditor && this._onDidChangeActiveTextEditor.event;
 	}
 
-	showTextDocument(document: TextDocument, column: ViewColumn): TPromise<vscode.TextEditor> {
-		return this._proxy._tryShowTextDocument(<URI> document.uri, TypeConverters.fromViewColumn(column)).then(id => {
+	showTextDocument(document: TextDocument, column: ViewColumn, preserveFocus: boolean): TPromise<vscode.TextEditor> {
+		return this._proxy._tryShowTextDocument(<URI> document.uri, TypeConverters.fromViewColumn(column), preserveFocus).then(id => {
 			let editor = this._editors[id];
 			if (editor) {
 				return editor;
@@ -525,12 +525,12 @@ export class MainThreadEditors {
 
 	// --- from plugin host process
 
-	_tryShowTextDocument(resource: URI, position: EditorPosition): TPromise<string> {
+	_tryShowTextDocument(resource: URI, position: EditorPosition, preserveFocus: boolean): TPromise<string> {
 
 		// the input we want to open
 		let input = {
 			resource,
-			options: { preserveFocus: false }
+			options: { preserveFocus }
 		};
 
 		return this._workbenchEditorService.openEditor(input, position).then(editor => {
diff --git a/src/vs/workbench/api/common/extHostOutputService.ts b/src/vs/workbench/api/common/extHostOutputService.ts
index b66ae56f4d1..e5276f0f7f2 100644
--- a/src/vs/workbench/api/common/extHostOutputService.ts
+++ b/src/vs/workbench/api/common/extHostOutputService.ts
@@ -47,8 +47,8 @@ export class ExtHostOutputChannel implements vscode.OutputChannel {
 		this._proxy.clear(this._name);
 	}
 
-	show(column?: vscode.ViewColumn): void {
-		this._proxy.reveal(this._name, TypeConverters.fromViewColumn(column));
+	show(column?: vscode.ViewColumn, preserveFocus?: boolean): void {
+		this._proxy.reveal(this._name, TypeConverters.fromViewColumn(column), preserveFocus);
 	}
 
 	hide(): void {
@@ -95,8 +95,8 @@ export class MainThreadOutputService {
 		return undefined;
 	}
 
-	public reveal(channel: string, position: Position): TPromise<void> {
-		this._outputService.showOutput(channel, position);
+	public reveal(channel: string, position: Position, preserveFocus: boolean): TPromise<void> {
+		this._outputService.showOutput(channel, position, preserveFocus);
 		return undefined;
 	}