diff --git a/assets/css/layouts/backend_layout.scss b/assets/css/layouts/backend_layout.scss
index b81d02d4..0e2bb293 100644
--- a/assets/css/layouts/backend_layout.scss
+++ b/assets/css/layouts/backend_layout.scss
@@ -525,10 +525,6 @@ body .form-horizontal .controls {
     vertical-align: middle;
 }
 
-#calendar .calendar-header select {
-    min-width: 300px;
-}
-
 #calendar .calendar-header label {
     margin: 10px 0;
     vertical-align: middle;