diff --git a/src/wp-includes/css/jquery-ui-dialog.css b/src/wp-includes/css/jquery-ui-dialog.css
index fca2e1438e..5e78bbc5fe 100644
--- a/src/wp-includes/css/jquery-ui-dialog.css
+++ b/src/wp-includes/css/jquery-ui-dialog.css
@@ -291,6 +291,7 @@
 	height: 36px;
 	text-align: center;
 	border-radius: 0;
+	overflow: hidden;
 }
 
 .ui-dialog-titlebar-close:before {
@@ -319,10 +320,6 @@
 	outline-offset: -2px;
 }
 
-.ui-dialog-titlebar-close .ui-button-text {
-	display: none;
-}
-
 .ui-dialog-content {
 	padding: 16px;
 	overflow: auto;