diff --git a/src/wp-includes/css/buttons.css b/src/wp-includes/css/buttons.css
index 6da6da51e0..4eda42cb08 100644
--- a/src/wp-includes/css/buttons.css
+++ b/src/wp-includes/css/buttons.css
@@ -250,7 +250,7 @@ TABLE OF CONTENTS:
 .wp-core-ui .button-primary.focus,
 .wp-core-ui .button-primary:focus {
 	background: #135e96;
-	border-color: #135e96;
+	border-color: #02163a;
 	color: #fff;
 }