diff --git a/src/wp-content/themes/twentytwentytwo/style.css b/src/wp-content/themes/twentytwentytwo/style.css
index 3b4166028457d..4d36abfab2f9b 100644
--- a/src/wp-content/themes/twentytwentytwo/style.css
+++ b/src/wp-content/themes/twentytwentytwo/style.css
@@ -65,7 +65,7 @@ a:active {
 .wp-block-file .wp-block-file__button {
 	background-color: var(--wp--preset--color--primary);
 	border-radius: 0;
-	border: none;
+	border: 0 solid;
 	color: var(--wp--preset--color--background);
 	font-size: var(--wp--preset--font-size--medium);
 	padding: calc(.667em + 2px) calc(1.333em + 2px);