diff --git a/src/wp-includes/interactivity-api/class-wp-interactivity-api.php b/src/wp-includes/interactivity-api/class-wp-interactivity-api.php
index 095f12380dfbe..bb87995153906 100644
--- a/src/wp-includes/interactivity-api/class-wp-interactivity-api.php
+++ b/src/wp-includes/interactivity-api/class-wp-interactivity-api.php
@@ -1086,8 +1086,7 @@ private function data_wp_bind_processor( WP_Interactivity_API_Directives_Process
 	 */
 	private function data_wp_class_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) {
 		if ( 'enter' === $mode ) {
-			$all_class_directives = $p->get_attribute_names_with_prefix( 'data-wp-class--' );
-			$entries              = $this->get_directive_entries( $p, 'class' );
+			$entries = $this->get_directive_entries( $p, 'class' );
 			foreach ( $entries as $entry ) {
 				if ( empty( $entry['suffix'] ) ) {
 					continue;