diff --git a/interp/grid/gmsh.py b/interp/grid/gmsh.py
index 42e2b22..9cb2ba3 100644
--- a/interp/grid/gmsh.py
+++ b/interp/grid/gmsh.py
@@ -101,7 +101,7 @@ class gmsh_grid(grid):
         self.cells[v[1]].add_neighbor(self.cells[v[0]])
 
   def dump_to_blender_files(self, pfile = '/tmp/points.p', ffile = '/tmp/cells.p'):
-    pickle.dump([(p[0], p[1], p[2]) for p in self.verts],   open(pfile, 'w'))
+    pickle.dump([(p[0], p[1], 0.0) for p in self.verts],   open(pfile, 'w'))
     pickle.dump([f.verts for f in self.cells.itervalues()], open(ffile, 'w'))
 
 class gmsh_grid3D(grid):