diff --git a/packages/block-library/src/navigation-submenu/index.php b/packages/block-library/src/navigation-submenu/index.php
index 92b55e291606e8..d61dbb2426c240 100644
--- a/packages/block-library/src/navigation-submenu/index.php
+++ b/packages/block-library/src/navigation-submenu/index.php
@@ -222,7 +222,7 @@ function render_block_core_navigation_submenu( $attributes, $content, $block ) {
 
 		if ( strpos( $inner_blocks_html, 'current-menu-item' ) ) {
 			$tag_processor = new WP_HTML_Tag_Processor( $html );
-			while ( $tag_processor->next_tag( array( 'class_name' => 'wp-block-navigation-item__content' ) ) ) {
+			while ( $tag_processor->next_tag( array( 'class_name' => 'wp-block-navigation-item' ) ) ) {
 				$tag_processor->add_class( 'current-menu-ancestor' );
 			}
 			$html = $tag_processor->get_updated_html();