diff --git a/core/css/header.scss b/core/css/header.scss
index 656440520a0..3b20c801c1b 100644
--- a/core/css/header.scss
+++ b/core/css/header.scss
@@ -478,8 +478,6 @@ nav {
 		background-color: rgba($color-main-background, .97);
 		white-space: nowrap;
 		border: none;
-		-webkit-border-radius: 3px;
-		-moz-border-radius: 3px;
 		border-radius: 3px;
 		border-top-left-radius: 0;
 		border-top-right-radius: 0;