diff --git a/src/static/js/ace2_inner.js b/src/static/js/ace2_inner.js
index b8b59b84d..ae2da327a 100644
--- a/src/static/js/ace2_inner.js
+++ b/src/static/js/ace2_inner.js
@@ -963,6 +963,7 @@ function Ace2Inner(){
         setClassPresence(root, "rtl", value)
         setClassPresence(root, "ltr", !value)
         document.documentElement.dir = value? 'rtl' : 'ltr'
+        outerWin.document.documentElement.dir = value? 'rtl' : 'ltr'
       }
     };