diff --git a/src/dom/common/dom-view.tsx b/src/dom/common/dom-view.tsx
index c797fcfa..73eea308 100644
--- a/src/dom/common/dom-view.tsx
+++ b/src/dom/common/dom-view.tsx
@@ -904,6 +904,8 @@ abstract class DOMView<State extends DOMViewState, Data> {
 		if (this._selectedAnnotationIDs.length === 1
 				&& (key.endsWith('Shift-ArrowLeft')
 					|| key.endsWith('Shift-ArrowRight'))) {
+			event.preventDefault();
+
 			let annotation = this._annotationsByID.get(this._selectedAnnotationIDs[0])!;
 			let oldRange = this.toDisplayedRange(annotation.position)!;
 			if (annotation.type === 'note') {
@@ -963,7 +965,6 @@ abstract class DOMView<State extends DOMViewState, Data> {
 				this._options.onUpdateAnnotations([annotation]);
 			}
 
-			event.preventDefault();
 			return;
 		}