diff --git a/meshpy/triangle.py b/meshpy/triangle.py
index 53330dd..d977075 100644
--- a/meshpy/triangle.py
+++ b/meshpy/triangle.py
@@ -91,7 +91,7 @@ def intermediate_points(pa, pb, n):
         subdiv_it = repeat(subdivisions, len(facets))
     else:
         assert len(facets) == len(subdivisions)
-        subdiv_it = subdivisions.__iter__()
+        subdiv_it = iter(subdivisions)
 
     new_points = points[:]
     new_facets = []