diff --git a/src/vs/workbench/test/workbenchTestServices.ts b/src/vs/workbench/test/workbenchTestServices.ts
index a6a14ef37148a722635a899eb9bba24142e2367c..e77466792d6791778071e7fa117120664f672361 100644
--- a/src/vs/workbench/test/workbenchTestServices.ts
+++ b/src/vs/workbench/test/workbenchTestServices.ts
@@ -374,6 +374,9 @@ export class TestHistoryService implements IHistoryService {
 	public getLastActiveFile(schemeFilter: string): URI {
 		return void 0;
 	}
+
+	public openLastEditLocation(): void {
+	}
 }
 
 export class TestDialogService implements IDialogService {