diff --git a/sao/src/sao.less b/sao/src/sao.less
index 4ff92d4d03..8505e76c87 100644
--- a/sao/src/sao.less
+++ b/sao/src/sao.less
@@ -114,7 +114,7 @@ html[theme="default"] {
     }
 }
 
-.btn-primary {
+.btn-primary, .bg-primary {
     .icon {
         filter: brightness(0) invert(1);
     }