diff --git a/src/General/UI.coffee b/src/General/UI.coffee
index 2b9551370..60cc1db1e 100755
--- a/src/General/UI.coffee
+++ b/src/General/UI.coffee
@@ -345,7 +345,7 @@ UI = do ->
     else
       top
 
-    [left, right] = if clientX <= @clientWidth - 400
+    [left, right] = if clientX <= @clientWidth / 2
       [clientX + 45 + 'px', null]
     else
       [null, @clientWidth - clientX + 45 + 'px']