diff --git a/opentrafficshaper/plugins/statistics/statistics.pm b/opentrafficshaper/plugins/statistics/statistics.pm
index a173c6bac2ed79f0a8ec3bce3e3c469470e49f5b..84d52cbc16c05de3d0258193011cf57490067d5c 100644
--- a/opentrafficshaper/plugins/statistics/statistics.pm
+++ b/opentrafficshaper/plugins/statistics/statistics.pm
@@ -981,7 +981,7 @@ sub _getIdentifierFromPID
 		return undef;
 	}
 
-	return sprintf("Pool:%s",$pool->{'Name'});
+	return sprintf("Pool:%s/%s",$pool->{'InterfaceGroupID'},$pool->{'Name'});
 }