diff --git a/src/wp-includes/class-wp-admin-bar.php b/src/wp-includes/class-wp-admin-bar.php
index 3568be0789..3603b5be44 100644
--- a/src/wp-includes/class-wp-admin-bar.php
+++ b/src/wp-includes/class-wp-admin-bar.php
@@ -506,7 +506,7 @@ class WP_Admin_Bar {
 
 		foreach ( $attributes as $attribute ) {
 			if ( ! empty( $node->meta[ $attribute ] ) ) {
-				echo " $attribute='" . esc_attr( $node->meta[ $attribute ] ) . '"';
+				echo " $attribute='" . esc_attr( $node->meta[ $attribute ] ) . "'";
 			}
 		}