From d91068f11a18f428f448944e53afc4d78a49554e Mon Sep 17 00:00:00 2001
From: Mario Voigt <mario.voigt@stadtfabrikanten.org>
Date: Fri, 2 Apr 2021 10:16:23 +0200
Subject: [PATCH] some small fix in cleangroups extension

---
 extensions/fablabchemnitz/cleangroups.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/extensions/fablabchemnitz/cleangroups.py b/extensions/fablabchemnitz/cleangroups.py
index 51f231a1..1d21b49b 100644
--- a/extensions/fablabchemnitz/cleangroups.py
+++ b/extensions/fablabchemnitz/cleangroups.py
@@ -10,12 +10,12 @@ This extension is totally minimal. It will just clean the whole document from gr
 Author: Mario Voigt / FabLab Chemnitz
 Mail: mario.voigt@stadtfabrikanten.org
 Date: 19.08.2020
-Last Patch: 23.08.2020
+Last Patch: 01.04.2021
 License: GNU GPL v3
 """
 
-class CleanGroups(inkex.Effect):
-       
+class CleanGroups(inkex.EffectExtension):
+     
     def __init__(self):
         inkex.Effect.__init__(self)