diff --git a/wp-includes/query.php b/wp-includes/query.php
index bc6edea5ac..8741d6f9df 100644
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -2180,7 +2180,7 @@ class WP_Query {
 			if ( !empty($q['sentence']) ) {
 				$q['search_terms'] = array($q['s']);
 			} else {
-				preg_match_all('/".*?("|$)|((?<=[\\s",+])|^)[^\\s",+]+/', $q['s'], $matches);
+				preg_match_all('/".*?("|$)|((?<=[\r\n\t ",+])|^)[^\r\n\t ",+]+/', $q['s'], $matches);
 				$q['search_terms'] = array_map('_search_terms_tidy', $matches[0]);
 			}
 			$n = !empty($q['exact']) ? '' : '%';