diff --git a/extensions/fablabchemnitz/incadiff/incadiff.inx b/extensions/fablabchemnitz/incadiff/incadiff.inx
index ef6114bd..d7b1c508 100644
--- a/extensions/fablabchemnitz/incadiff/incadiff.inx
+++ b/extensions/fablabchemnitz/incadiff/incadiff.inx
@@ -6,7 +6,7 @@
         <object-type>all</object-type>
         <effects-menu>
             <submenu name="FabLab Chemnitz">
-                <submenu name="Paths - Cut/Intersect/Purge" />/>
+                <submenu name="Paths - Cut/Intersect/Purge" />
             </submenu>
         </effects-menu>
         <menu-tip>Apply successive difference operations on superimposed paths. Useful for plotter addicts.</menu-tip>
diff --git a/extensions/fablabchemnitz/plycutter/plycutter b/extensions/fablabchemnitz/plycutter/plycutter
deleted file mode 160000
index 7d07e897..00000000
--- a/extensions/fablabchemnitz/plycutter/plycutter
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 7d07e897af9707c87743326108823f48a0022b7d