diff --git a/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php b/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php
index 88cc02b9..b2131347 100755
--- a/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php
+++ b/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php
@@ -40,7 +40,7 @@ class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_In
 
         $nesting = 0;
         $spanContentTokens = array();
-        while ($this->forwardUntilEndToken(&$i, &$current, &$nesting)) {}
+        while ($this->forwardUntilEndToken($i, $current, $nesting)) {}
 
         if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') {
             // Mark closing span tag for deletion