diff --git a/src/vs/editor/browser/editorDom.ts b/src/vs/editor/browser/editorDom.ts
index 38100ab8407..e42959d81b6 100644
--- a/src/vs/editor/browser/editorDom.ts
+++ b/src/vs/editor/browser/editorDom.ts
@@ -150,13 +150,13 @@ export class EditorMouseEventFactory {
 	}
 
 	public onContextMenu(target: HTMLElement, callback: (e: EditorMouseEvent) => void): IDisposable {
-		return dom.addDisposableListener(target, 'contextmenu', (e: MouseEvent) => {
+		return dom.addDisposableListener(target, dom.EventType.CONTEXT_MENU, (e: MouseEvent) => {
 			callback(this._create(e));
 		});
 	}
 
 	public onMouseUp(target: HTMLElement, callback: (e: EditorMouseEvent) => void): IDisposable {
-		return dom.addDisposableListener(target, 'mouseup', (e: MouseEvent) => {
+		return dom.addDisposableListener(target, dom.EventType.MOUSE_UP, (e: MouseEvent) => {
 			callback(this._create(e));
 		});
 	}
@@ -180,7 +180,7 @@ export class EditorMouseEventFactory {
 	}
 
 	public onMouseMove(target: HTMLElement, callback: (e: EditorMouseEvent) => void): IDisposable {
-		return dom.addDisposableListener(target, 'mousemove', (e) => callback(this._create(e)));
+		return dom.addDisposableListener(target, dom.EventType.MOUSE_MOVE, (e) => callback(this._create(e)));
 	}
 }
 
diff --git a/src/vs/workbench/electron-sandbox/parts/titlebar/titlebarPart.ts b/src/vs/workbench/electron-sandbox/parts/titlebar/titlebarPart.ts
index a4f1a964afe..04095aab5d7 100644
--- a/src/vs/workbench/electron-sandbox/parts/titlebar/titlebarPart.ts
+++ b/src/vs/workbench/electron-sandbox/parts/titlebar/titlebarPart.ts
@@ -200,7 +200,7 @@ export class NativeTitlebarPart extends BrowserTitlebarPart {
 				}
 
 				const zoomFactor = getZoomFactor(getWindow(this.element));
-				this.onContextMenu(new MouseEvent('mouseup', { clientX: x / zoomFactor, clientY: y / zoomFactor }), MenuId.TitleBarContext);
+				this.onContextMenu(new MouseEvent(EventType.MOUSE_UP, { clientX: x / zoomFactor, clientY: y / zoomFactor }), MenuId.TitleBarContext);
 			}));
 		}