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 de9905a..8bf492e 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
@@ -182,6 +182,7 @@
       'a shift+a': '_handleAKey',
       'u': '_handleUKey',
       ',': '_handleCommaKey',
+      'v': '_handleVKey',
     },
 
     attached() {
@@ -421,6 +422,18 @@
       this.$.diffPreferences.open();
     },
 
+    _handleVKey(e) {
+      if (this.shouldSuppressKeyboardShortcut(e) ||
+          this.modifierPressed(e)) { return; }
+
+      e.preventDefault();
+      if (this.changeViewState.diffMode=='SIDE_BY_SIDE') {
+        this.set('changeViewState.diffMode', 'UNIFIED_DIFF');
+      } else {
+        this.set('changeViewState.diffMode', 'SIDE_BY_SIDE');
+      }
+    },
+
     _navToChangeView() {
       if (!this._changeNum || !this._patchRange.patchNum) { return; }
       this._navigateToChange(