diff --git a/static/js/ace2_common.js b/static/js/ace2_common.js
index d08c521a1..4561b9192 100644
--- a/static/js/ace2_common.js
+++ b/static/js/ace2_common.js
@@ -95,8 +95,8 @@ var browser = {
   opera: /opera/.test(userAgent),
   msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
   mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent),
-  windows: /windows/.test(userAgent)
-  mobile: /mobile/.test(userAgent) || /android/.test(userAgent);
+  windows: /windows/.test(userAgent),
+  mobile: /mobile/.test(userAgent) || /android/.test(userAgent)
 };