diff --git a/src/main/frontend/components/block.cljs b/src/main/frontend/components/block.cljs
index 34e4b05b1b..a1e1679fed 100644
--- a/src/main/frontend/components/block.cljs
+++ b/src/main/frontend/components/block.cljs
@@ -521,8 +521,8 @@
                (str " page-property-key block-property"))
       :data-ref page-name
       :on-mouse-down (fn [e] (open-page-ref e page-name redirect-page-name page-name-in-block contents-page?))
-      :on-key-up (fn [e] ((when (= (.-key e) "Enter")
-                           (open-page-ref e page-name redirect-page-name page-name-in-block contents-page?))))}
+      :on-key-up (fn [e] (when (and e (= (.-key e) "Enter"))
+                           (open-page-ref e page-name redirect-page-name page-name-in-block contents-page?)))}
 
      (if (and (coll? children) (seq children))
        (for [child children]