diff --git a/extensions/fablabchemnitz_migrategroups.inx b/extensions/fablabchemnitz_migrategroups.inx
index a2ab7095..6f71587a 100644
--- a/extensions/fablabchemnitz_migrategroups.inx
+++ b/extensions/fablabchemnitz_migrategroups.inx
@@ -11,6 +11,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command reldir="extensions" interpreter="python">fablabchemnitz_migrategroups.py</command>
+        <command location="inx" interpreter="python">fablabchemnitz_migrategroups.py</command>
     </script>
 </inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz_migrategroups.py b/extensions/fablabchemnitz_migrategroups.py
index fe57dbd5..cc5e57f4 100644
--- a/extensions/fablabchemnitz_migrategroups.py
+++ b/extensions/fablabchemnitz_migrategroups.py
@@ -57,8 +57,9 @@ class MigrateGroups(inkex.Effect):
                     group.getparent().remove(group)
                     
         #remove the selected, now empty group (if it's the case)
-        if self.svg.selected[0].tag == inkex.addNS('g','svg'):
-            self.svg.selected[0].getparent().remove(self.svg.selected[0])
+        if len(self.svg.selected) > 0:
+            if self.svg.selected[0].tag == inkex.addNS('g','svg'):
+                self.svg.selected[0].getparent().remove(self.svg.selected[0])
 
         #TODO: make newGroup selected now. How ?
 MigrateGroups().run()
\ No newline at end of file