diff --git a/phpQuery/phpQuery/phpQueryObject.php b/phpQuery/phpQuery/phpQueryObject.php
index c421cdf..202f088 100644
--- a/phpQuery/phpQuery/phpQueryObject.php
+++ b/phpQuery/phpQuery/phpQueryObject.php
@@ -919,7 +919,7 @@ protected function pseudoClasses($class) {
 				$text = trim($args, "\"'");
 				$stack = array();
 				foreach($this->elements as $node) {
-					if (mb_stripos($node->textContent, $text) === false)
+					if (($text) && (mb_stripos($node->textContent, $text) === false))
 						continue;
 					$stack[] = $node;
 				}