diff --git a/python/gtsam/tests/test_DiscreteConditional.py b/python/gtsam/tests/test_DiscreteConditional.py
index f46a0e8773..241a5f0be9 100644
--- a/python/gtsam/tests/test_DiscreteConditional.py
+++ b/python/gtsam/tests/test_DiscreteConditional.py
@@ -87,7 +87,7 @@ def test_marginals(self):
         pAB = prior * conditional
         self.gtsamAssertEquals(prior, pAB.marginal(B[0]))
 
-        pA = DiscreteConditional(A % "5/4")
+        pA = DiscreteConditional(A, "5/4")
         self.gtsamAssertEquals(pA, pAB.marginal(A[0]))
 
     def test_markdown(self):