diff --git a/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view.js b/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view.js
index 9862b3f..8798a8f 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view.js
+++ b/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view.js
@@ -990,6 +990,7 @@
     },
 
     _handleShiftXKey(e) {
+      if (this.shouldSuppressKeyboardShortcut(e)) { return; }
       this.$.diff.expandAllContext();
     },
   });