diff --git a/gplugins/gmsh/parse_gds.py b/gplugins/gmsh/parse_gds.py
index 57d4d83b..bb4c7c31 100644
--- a/gplugins/gmsh/parse_gds.py
+++ b/gplugins/gmsh/parse_gds.py
@@ -39,7 +39,7 @@ def fuse_polygons(
     ]
 
     return shapely.ops.unary_union(shapely_polygons).simplify(
-        simplify_tol, preserve_topology=True
+        simplify_tol, preserve_topology=False
     )