diff --git a/app/assets/stylesheets/application/mobile.scss b/app/assets/stylesheets/application/mobile.scss
index 8012a6b2e25..120a22dbe5e 100644
--- a/app/assets/stylesheets/application/mobile.scss
+++ b/app/assets/stylesheets/application/mobile.scss
@@ -1,6 +1,6 @@
 @media only screen 
 and (min-device-width : 320px) 
-and (max-device-width : 480px) {
+and (max-device-width : 540px) {
   #reply-control {
     .toggle-preview { display:none; }
     #reply-title { width: 250px; }