diff --git a/gtsam/discrete/DiscretePrior.h b/gtsam/discrete/DiscretePrior.h
index 1a7c6ae6c..d11d9be06 100644
--- a/gtsam/discrete/DiscretePrior.h
+++ b/gtsam/discrete/DiscretePrior.h
@@ -98,7 +98,7 @@ class GTSAM_EXPORT DiscretePrior : public DiscreteConditional {
    * sample
    * @return sample from conditional
    */
-  size_t sample() const { return Base::sample({}); }
+  size_t sample() const { return Base::sample(DiscreteValues()); }
 
   /// @}
 };
diff --git a/python/gtsam/tests/test_DiscretePrior.py b/python/gtsam/tests/test_DiscretePrior.py
index 4f017d66a..5bf6a8d19 100644
--- a/python/gtsam/tests/test_DiscretePrior.py
+++ b/python/gtsam/tests/test_DiscretePrior.py
@@ -6,7 +6,7 @@ All Rights Reserved
 See LICENSE for the license information
 
 Unit tests for Discrete Priors.
-Author: Varun Agrawal
+Author: Frank Dellaert
 """
 
 # pylint: disable=no-name-in-module, invalid-name
@@ -42,6 +42,11 @@ class TestDiscretePrior(GtsamTestCase):
         expected = np.array([0.4, 0.6])
         np.testing.assert_allclose(expected, prior.pmf())
 
+    def test_sample(self):
+        prior = DiscretePrior(X, "2/3")
+        actual = prior.sample()
+        self.assertIsInstance(actual, int)
+
     def test_markdown(self):
         """Test the _repr_markdown_ method."""