diff --git a/ui/jquery.ui.autocomplete.js b/ui/jquery.ui.autocomplete.js
index bd7420df8..c9dd11609 100644
--- a/ui/jquery.ui.autocomplete.js
+++ b/ui/jquery.ui.autocomplete.js
@@ -316,7 +316,7 @@ $.widget( "ui.autocomplete", {
 
 $.extend( $.ui.autocomplete, {
 	escapeRegex: function( value ) {
-		return value.replace( /([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1" );
+		return value.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
 	},
 	filter: function(array, term) {
 		var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" );