diff --git a/modules/system/assets/ui/less/button.less b/modules/system/assets/ui/less/button.less
index 9ad0f3496a..68d7efb9d6 100644
--- a/modules/system/assets/ui/less/button.less
+++ b/modules/system/assets/ui/less/button.less
@@ -16,7 +16,6 @@
 // --------------------------------------------------
 
 .btn {
-    font-size: @font-size-base - 1;
     outline: none !important;
     .box-shadow(~"inset 0 -2px 0 rgba(0,0,0,.15)");