diff --git a/src/wp-includes/class-wp-comment-query.php b/src/wp-includes/class-wp-comment-query.php
index 05aa4fb97e..8fd48f1dac 100644
--- a/src/wp-includes/class-wp-comment-query.php
+++ b/src/wp-includes/class-wp-comment-query.php
@@ -1132,14 +1132,14 @@ class WP_Comment_Query {
 	 *
 	 * @global wpdb $wpdb WordPress database abstraction object.
 	 *
-	 * @param string $string
+	 * @param string $search
 	 * @param array  $cols
 	 * @return string
 	 */
-	protected function get_search_sql( $string, $cols ) {
+	protected function get_search_sql( $search, $cols ) {
 		global $wpdb;
 
-		$like = '%' . $wpdb->esc_like( $string ) . '%';
+		$like = '%' . $wpdb->esc_like( $search ) . '%';
 
 		$searches = array();
 		foreach ( $cols as $col ) {