diff --git a/src/vs/platform/quickinput/browser/quickInputList.ts b/src/vs/platform/quickinput/browser/quickInputList.ts
index 70612a06a835d..aac73b3a9a12e 100644
--- a/src/vs/platform/quickinput/browser/quickInputList.ts
+++ b/src/vs/platform/quickinput/browser/quickInputList.ts
@@ -18,6 +18,7 @@ import { range } from 'vs/base/common/arrays';
 import { ThrottledDelayer } from 'vs/base/common/async';
 import { compareAnything } from 'vs/base/common/comparers';
 import { memoize } from 'vs/base/common/decorators';
+import { isCancellationError } from 'vs/base/common/errors';
 import { Emitter, Event } from 'vs/base/common/event';
 import { IMatch } from 'vs/base/common/filters';
 import { IMarkdownString } from 'vs/base/common/htmlContent';
@@ -410,11 +411,18 @@ export class QuickInputList {
 			) {
 				return;
 			}
-			await delayer.trigger(async () => {
-				if (e.element) {
-					this.showHover(e.element);
+			try {
+				await delayer.trigger(async () => {
+					if (e.element) {
+						this.showHover(e.element);
+					}
+				});
+			} catch (e) {
+				// Ignore cancellation errors due to mouse out
+				if (!isCancellationError(e)) {
+					throw e;
 				}
-			});
+			}
 		}));
 		this.disposables.push(this.list.onMouseOut(e => {
 			// onMouseOut triggers every time a new element has been moused over