diff --git a/javascript/TreeDropdownField.js b/javascript/TreeDropdownField.js
index 1ba2fa4c5..4f687b719 100644
--- a/javascript/TreeDropdownField.js
+++ b/javascript/TreeDropdownField.js
@@ -286,7 +286,7 @@
);
this.find('.treedropdownfield-panel').prepend(
- $('')
+ $('')
);
},
search: function(str, callback) {