warning fix

1 files changed, 1 insertions, 1 deletions

diff --git a/itjs.class b/itjs.class
index 247b0e8..67027eb 100644
--- a/itjs.class
+++ b/itjs.class
@@ -203,7 +203,7 @@ static function checksum($fnlist, $p = array())
 	if ($filenames && $p['short_expire'] && (time() - max(@array_map('filemtime', $filenames)) < 60))
 		return "-"; # trigger short expire, our file may not yet be up to date on other slaves
 	else if ($filenames)
-		return it_cache::get($key) ?: it_cache::put($key, substr(md5(self::filecontents($filenames, it::match('\.(js|css)', $fnlist))), 0, 10), array('ttl' => 60));
+		return it_cache::get($key) ?: it_cache::put($key, substr(md5(self::filecontents($filenames, it::match('\.(js|css)', join("", $filenames)))), 0, 10), array('ttl' => 60));
 }
 
 /**