diff --git a/src/vs/workbench/api/browser/mainThreadDocumentsAndEditors.ts b/src/vs/workbench/api/browser/mainThreadDocumentsAndEditors.ts
index 633e2f24331e10a8b4c20f8ea401ebb09e5e8152..dda2fa8a663deb6f8e83254b7053ff8175244dda 100644
--- a/src/vs/workbench/api/browser/mainThreadDocumentsAndEditors.ts
+++ b/src/vs/workbench/api/browser/mainThreadDocumentsAndEditors.ts
@@ -29,6 +29,7 @@ import { IEditorGroupsService } from 'vs/workbench/services/editor/common/editor
 import { IPanelService } from 'vs/workbench/services/panel/common/panelService';
 import { ITextFileService } from 'vs/workbench/services/textfile/common/textfiles';
 import { IUntitledEditorService } from 'vs/workbench/services/untitled/common/untitledEditorService';
+import { IWorkbenchEnvironmentService } from 'vs/workbench/services/environment/common/environmentService';
 
 namespace delta {
 
@@ -330,12 +331,12 @@ export class MainThreadDocumentsAndEditors {
 		@IUntitledEditorService untitledEditorService: IUntitledEditorService,
 		@IEditorGroupsService private readonly _editorGroupService: IEditorGroupsService,
 		@IBulkEditService bulkEditService: IBulkEditService,
-		@IPanelService panelService: IPanelService
-
+		@IPanelService panelService: IPanelService,
+		@IWorkbenchEnvironmentService environmentService: IWorkbenchEnvironmentService
 	) {
 		this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostDocumentsAndEditors);
 
-		const mainThreadDocuments = new MainThreadDocuments(this, extHostContext, this._modelService, modeService, this._textFileService, fileService, textModelResolverService, untitledEditorService);
+		const mainThreadDocuments = new MainThreadDocuments(this, extHostContext, this._modelService, modeService, this._textFileService, fileService, textModelResolverService, untitledEditorService, environmentService);
 		extHostContext.set(MainContext.MainThreadDocuments, mainThreadDocuments);
 
 		const mainThreadTextEditors = new MainThreadTextEditors(this, extHostContext, codeEditorService, bulkEditService, this._editorService, this._editorGroupService);
diff --git a/src/vs/workbench/test/electron-browser/api/mainThreadDocumentsAndEditors.test.ts b/src/vs/workbench/test/electron-browser/api/mainThreadDocumentsAndEditors.test.ts
index 9bcf53a847eb35e25a96b84afd91f56cc5cf18eb..1dc37b2b274c9ef9cb3c849eedc2090095b53456 100644
--- a/src/vs/workbench/test/electron-browser/api/mainThreadDocumentsAndEditors.test.ts
+++ b/src/vs/workbench/test/electron-browser/api/mainThreadDocumentsAndEditors.test.ts
@@ -13,7 +13,7 @@ import { ITextFileService } from 'vs/workbench/services/textfile/common/textfile
 import { ExtHostDocumentsAndEditorsShape, IDocumentsAndEditorsDelta } from 'vs/workbench/api/common/extHost.protocol';
 import { createTestCodeEditor, TestCodeEditor } from 'vs/editor/test/browser/testCodeEditor';
 import { mock } from 'vs/workbench/test/electron-browser/api/mock';
-import { TestEditorService, TestEditorGroupsService, TestTextResourcePropertiesService } from 'vs/workbench/test/workbenchTestServices';
+import { TestEditorService, TestEditorGroupsService, TestTextResourcePropertiesService, TestEnvironmentService } from 'vs/workbench/test/workbenchTestServices';
 import { Event } from 'vs/base/common/event';
 import { ITextModel } from 'vs/editor/common/model';
 import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
@@ -81,7 +81,8 @@ suite('MainThreadDocumentsAndEditors', () => {
 				getActivePanel() {
 					return null;
 				}
-			}
+			},
+			TestEnvironmentService
 		);
 		/* tslint:enable */
 	});
diff --git a/src/vs/workbench/test/electron-browser/api/mainThreadEditors.test.ts b/src/vs/workbench/test/electron-browser/api/mainThreadEditors.test.ts
index 50a5c60cd538a0cacd7d99ccc9ca0fa197f8eceb..ee94f36390d3b1e56987337b125aeabc83182bec 100644
--- a/src/vs/workbench/test/electron-browser/api/mainThreadEditors.test.ts
+++ b/src/vs/workbench/test/electron-browser/api/mainThreadEditors.test.ts
@@ -113,7 +113,8 @@ suite('MainThreadEditors', () => {
 				getActivePanel() {
 					return null;
 				}
-			}
+			},
+			TestEnvironmentService
 		);
 
 		editors = new MainThreadTextEditors(