diff --git a/ext/spl/php_spl.c b/ext/spl/php_spl.c
index 40e17e29dc2..b56ef9cb6a5 100755
--- a/ext/spl/php_spl.c
+++ b/ext/spl/php_spl.c
@@ -302,7 +302,7 @@ PHP_FUNCTION(spl_autoload)
 	}
 } /* }}} */
 
-/* {{{ proto void string spl_autoload_extensions([string file_extensions])
+/* {{{ proto string spl_autoload_extensions([string file_extensions])
  Register and return default file extensions for spl_autoload */
 PHP_FUNCTION(spl_autoload_extensions)
 {