diff --git a/src/vs/editor/browser/widget/diffEditorWidget.ts b/src/vs/editor/browser/widget/diffEditorWidget.ts
index 46ec60360c6cfa3cbb7a7580d6ace6224ef99f52..db83992695313a187f9a705ed23af76985e3decb 100644
--- a/src/vs/editor/browser/widget/diffEditorWidget.ts
+++ b/src/vs/editor/browser/widget/diffEditorWidget.ts
@@ -384,6 +384,8 @@ export class DiffEditorWidget extends Disposable implements editorBrowser.IDiffE
 				scrollTop: e.scrollTop
 			});
 			this._isHandlingScrollEvent = false;
+
+			this._layoutOverviewViewport();
 		}));
 
 		this._register(this.originalEditor.onDidChangeViewZones(() => {