diff --git a/src/vs/vscode.d.ts b/src/vs/vscode.d.ts
index bb36ee09add..bb260eb969a 100644
--- a/src/vs/vscode.d.ts
+++ b/src/vs/vscode.d.ts
@@ -3691,7 +3691,7 @@ declare module 'vscode' {
 	}
 
 	/**
-	 * The execution of a task happens as a external process
+	 * The execution of a task happens as an external process
 	 * without shell interaction.
 	 */
 	export class ProcessExecution {
@@ -5423,8 +5423,8 @@ declare module 'vscode' {
 		readonly id: string;
 
 		/**
-		 * The debug session's type from the debug configuration.
-		 */
+ * The debug session's type from the debug configuration.
+ */
 		readonly type: string;
 
 		/**
@@ -5464,10 +5464,10 @@ declare module 'vscode' {
 	export namespace debug {
 
 		/**
-		 * Create a new debug session based on the given configuration.
+		 * Start a debug session based on the given configuration.
 		 * @param configuration
 		 */
-		export function createDebugSession(configuration: DebugConfiguration): Thenable<DebugSession>;
+		export function startDebugSession(configuration: DebugConfiguration): Thenable<DebugSession>;
 
 		/**
 		 * The currently active debug session or `undefined`. The active debug session is the one
diff --git a/src/vs/workbench/api/electron-browser/mainThreadDebugService.ts b/src/vs/workbench/api/electron-browser/mainThreadDebugService.ts
index f79a00d97e6..0f3e4050c5d 100644
--- a/src/vs/workbench/api/electron-browser/mainThreadDebugService.ts
+++ b/src/vs/workbench/api/electron-browser/mainThreadDebugService.ts
@@ -43,7 +43,7 @@ export class MainThreadDebugService extends MainThreadDebugServiceShape {
 		this._toDispose = dispose(this._toDispose);
 	}
 
-	public $createDebugSession(configuration: IConfig): TPromise<DebugSessionUUID> {
+	public $startDebugSession(configuration: IConfig): TPromise<DebugSessionUUID> {
 		if (configuration.request !== 'launch' && configuration.request !== 'attach') {
 			return TPromise.wrapError(new Error(`only 'launch' or 'attach' allowed for 'request' attribute`));
 		}
@@ -53,7 +53,7 @@ export class MainThreadDebugService extends MainThreadDebugServiceShape {
 			}
 			return TPromise.wrapError(new Error('cannot create debug session'));
 		}, err => {
-			return TPromise.wrapError(err && err.message ? err.message : 'cannot create debug session');
+			return TPromise.wrapError(err && err.message ? err.message : 'cannot start debug session');
 		});
 	}
 
diff --git a/src/vs/workbench/api/node/extHost.api.impl.ts b/src/vs/workbench/api/node/extHost.api.impl.ts
index e0a2cc21959..1c08f1cf6be 100644
--- a/src/vs/workbench/api/node/extHost.api.impl.ts
+++ b/src/vs/workbench/api/node/extHost.api.impl.ts
@@ -467,8 +467,8 @@ export function createApiFactory(
 			get activeDebugSession() {
 				return extHostDebugService.activeDebugSession;
 			},
-			createDebugSession(config: vscode.DebugConfiguration) {
-				return extHostDebugService.createDebugSession(config);
+			startDebugSession(config: vscode.DebugConfiguration) {
+				return extHostDebugService.startDebugSession(config);
 			},
 			onDidTerminateDebugSession(listener, thisArg?, disposables?) {
 				return extHostDebugService.onDidTerminateDebugSession(listener, thisArg, disposables);
diff --git a/src/vs/workbench/api/node/extHost.protocol.ts b/src/vs/workbench/api/node/extHost.protocol.ts
index 1437d4f91ef..f724fae276a 100644
--- a/src/vs/workbench/api/node/extHost.protocol.ts
+++ b/src/vs/workbench/api/node/extHost.protocol.ts
@@ -345,7 +345,7 @@ export abstract class MainThreadSCMShape {
 export type DebugSessionUUID = string;
 
 export abstract class MainThreadDebugServiceShape {
-	$createDebugSession(config: vscode.DebugConfiguration): TPromise<DebugSessionUUID> { throw ni(); }
+	$startDebugSession(config: vscode.DebugConfiguration): TPromise<DebugSessionUUID> { throw ni(); }
 	$customDebugAdapterRequest(id: DebugSessionUUID, command: string, args: any): TPromise<any> { throw ni(); }
 }
 
diff --git a/src/vs/workbench/api/node/extHostDebugService.ts b/src/vs/workbench/api/node/extHostDebugService.ts
index b4eaf56447d..0e591c82529 100644
--- a/src/vs/workbench/api/node/extHostDebugService.ts
+++ b/src/vs/workbench/api/node/extHostDebugService.ts
@@ -41,9 +41,9 @@ export class ExtHostDebugService extends ExtHostDebugServiceShape {
 		this._debugServiceProxy = threadService.get(MainContext.MainThreadDebugService);
 	}
 
-	public createDebugSession(config: vscode.DebugConfiguration): TPromise<vscode.DebugSession> {
+	public startDebugSession(config: vscode.DebugConfiguration): TPromise<vscode.DebugSession> {
 
-		return this._debugServiceProxy.$createDebugSession(config).then((id: DebugSessionUUID) => {
+		return this._debugServiceProxy.$startDebugSession(config).then((id: DebugSessionUUID) => {
 			const debugSession = new ExtHostDebugSession(this._debugServiceProxy, id, config.type, config.name);
 			this._debugSessions.set(id, debugSession);
 			return debugSession;