diff --git a/core/misc/autocomplete.js b/core/misc/autocomplete.js
index b4e4123..639f9dc 100644
--- a/core/misc/autocomplete.js
+++ b/core/misc/autocomplete.js
@@ -181,7 +181,7 @@
       if ($autocomplete.length) {
         // Allow options to be overriden per instance.
         var blacklist = $autocomplete.attr('data-autocomplete-first-character-blacklist');
-        var options = $.extend(autocomplete.options, {
+        $.extend(autocomplete.options, {
           firstCharacterBlacklist: (blacklist) ? blacklist : ''
         });
         // Use jQuery UI Autocomplete on the textfield.