diff --git a/core/css/header.scss b/core/css/header.scss
index b14baac5ad157..eb7188ce46ba5 100644
--- a/core/css/header.scss
+++ b/core/css/header.scss
@@ -475,6 +475,8 @@ nav {
 	}
 	.app-loading .icon-loading-small-dark {
 		top:12px;
+		width: 20px;
+		height: 20px;
 	}