diff --git a/includes/class-comment-walker.php b/includes/class-comment-walker.php
index 1c23dae..a302a3b 100644
--- a/includes/class-comment-walker.php
+++ b/includes/class-comment-walker.php
@@ -291,12 +291,8 @@ public static function comment_query( $query ) {
 			return;
 		}
 
-		if ( ! empty( $query->query_vars['meta_query'] ) ) {
-			$query = current( $query->query_vars['meta_query'] );
-
-			if ( ! empty( $query['key'] ) && 'protocol' === $query['key'] ) {
-				return;
-			}
+		if ( ! empty( $query->query_vars['meta_query']['key'] ) && 'protocol' === $query->query_vars['meta_query']['key'] ) {
+			return;
 		}
 
 		if ( isset( $query->query_vars['count'] ) && true === $query->query_vars['count'] ) {