diff --git a/Geo/GModelIO_OCC.h b/Geo/GModelIO_OCC.h
index 5d188e12206da6c149eba88c20b63b0422fd5149..8e649afbbd0ab165245b94c028f1a6c2647d0d8a 100644
--- a/Geo/GModelIO_OCC.h
+++ b/Geo/GModelIO_OCC.h
@@ -596,6 +596,14 @@ public:
   {
     return _error("apply boolean fragments");
   }
+  void removeAllDuplicates()
+  {
+    return _error("remove all duplicates");
+  }
+  bool mergeVertices(const std::vector<int> &tags)
+  {
+    return _error("merge vertices");
+  }
   bool translate(const std::vector<std::pair<int, int> > &inDimTags,
                  double dx, double dy, double dz)
   {