diff --git a/jqueryui/jqueryui-tests.ts b/jqueryui/jqueryui-tests.ts
index 22ce6488aa..bb77d14f1c 100644
--- a/jqueryui/jqueryui-tests.ts
+++ b/jqueryui/jqueryui-tests.ts
@@ -1138,7 +1138,7 @@ function test_datepicker() {
     $(".selector").datepicker({ dayNamesMin: ["Di", "Lu", "Ma", "Me", "Je", "Ve", "Sa"] });
 
     $.datepicker.setDefaults($.datepicker.regional[""]);
-    $(selector).datepicker($.datepicker.regional["fr"]);
+    $(".selector").datepicker($.datepicker.regional["fr"]);
 }
 
 
diff --git a/jqueryui/jqueryui.d.ts b/jqueryui/jqueryui.d.ts
index e64acce210..f3c9e7e42e 100644
--- a/jqueryui/jqueryui.d.ts
+++ b/jqueryui/jqueryui.d.ts
@@ -73,6 +73,7 @@ interface AutocompleteEvents {
 }
 
 interface Autocomplete extends Widget, AutocompleteOptions, AutocompleteEvents {
+    escapeRegex: (string) => string;
 }
 
 
@@ -741,7 +742,7 @@ interface UI {
     buttonset: Button;
     datepicker: Datepicker;
     dialog: Dialog;
-    keyCode: number;
+    keyCode: keyCode    ;
     menu: Menu;
     progressbar: Progressbar;
     slider: Slider;