diff --git a/libs/mutualExclusion.php b/libs/mutualExclusion.php
index e70c303..73a3657 100644
--- a/libs/mutualExclusion.php
+++ b/libs/mutualExclusion.php
@@ -19,7 +19,6 @@
  * Date:   14th Oct. 2007
  ***************************************************************************/
 
-require_once dirname(__FILE__) . '/../config.php';
 require_once LIBDIR . 'errException.php';
 
 /**
@@ -69,9 +68,9 @@ function acquireLock ($lockFile, $csId, $msg = NULL)
 	}
 	else
 	{
-		$state = flock ($lock, LOCK_EX);
+		$state = flock ($lockHandle, LOCK_EX);
 		while ($state === FALSE)
-			$state = flock ($lock, LOCK_EX);
+			$state = flock ($lockHandle, LOCK_EX);
 	}
 
 	// Here one could write informations in the lockfile...time, pid, etc.