diff --git a/test/test_issue35.py b/test/test_issue35.py
index e10188c..4a43509 100644
--- a/test/test_issue35.py
+++ b/test/test_issue35.py
@@ -3,6 +3,5 @@
 
 # this should not segfault
 def test_issue35():
-    m = cdd.Matrix([[0, 0, 0]], number_type="float")
-    m.rep_type = cdd.RepType.INEQUALITY
-    m.canonicalize()
+    mat = cdd.matrix_from_array([[0, 0, 0]], rep_type=cdd.RepType.INEQUALITY)
+    cdd.matrix_canonicalize(mat)