diff --git a/src/wp-includes/css/dashicons.css b/src/wp-includes/css/dashicons.css
index 02eabcffb7..6eeff471da 100644
--- a/src/wp-includes/css/dashicons.css
+++ b/src/wp-includes/css/dashicons.css
@@ -24,7 +24,7 @@
 	line-height: 1;
 	font-weight: 400;
 	font-style: normal;
-	speak: none;
+	speak: never;
 	text-decoration: inherit;
 	text-transform: none;
 	text-rendering: auto;