diff --git a/editor/js/ui/editor.js b/editor/js/ui/editor.js
index ed281fbbc..27d836b4e 100644
--- a/editor/js/ui/editor.js
+++ b/editor/js/ui/editor.js
@@ -724,7 +724,7 @@ RED.editor = (function() {
                 }
             }
         }
-        if (editTrayWidthCache[type]) {
+        if (editTrayWidthCache.hasOwnProperty(type)) {
             trayOptions.width = editTrayWidthCache[type];
         }