diff --git a/iron-menu-behavior.html b/iron-menu-behavior.html
index 8cd8caf..76308c4 100644
--- a/iron-menu-behavior.html
+++ b/iron-menu-behavior.html
@@ -389,7 +389,7 @@
         // all other keys focus the menu item starting with that character
         this._focusWithKeyboardEvent(event);
       }
-      event.stopPropagation();
+      if (this.stopKeyboardEventPropagation) event.stopPropagation();
     },
 
     // override _activateHandler