diff --git a/opentrafficshaper/plugins/tc/tc.pm b/opentrafficshaper/plugins/tc/tc.pm
index abf2fa1f532414da38d53568c5abc25841866c81..aa929c50c632ab695affb68112a8f9111518d914 100644
--- a/opentrafficshaper/plugins/tc/tc.pm
+++ b/opentrafficshaper/plugins/tc/tc.pm
@@ -1492,7 +1492,7 @@ sub _disposePoolTcClass
 {
 	my ($interface,$tcClass) = @_;
 
-	return __disposeMinorTcClass($interface,TC_ROOT_CLASS,"_pool_class_:$tcClass");
+	return __disposeMinorTcClass($interface,TC_ROOT_CLASS,$tcClass);
 }