diff --git a/gtsam/linear/linear.i b/gtsam/linear/linear.i
index 01a28511c..6ccac0902 100644
--- a/gtsam/linear/linear.i
+++ b/gtsam/linear/linear.i
@@ -559,9 +559,12 @@ virtual class GaussianConditional : gtsam::JacobianFactor {
   gtsam::JacobianFactor* likelihood(
       const gtsam::VectorValues& frontalValues) const;
   gtsam::JacobianFactor* likelihood(gtsam::Vector frontal) const;
-  gtsam::VectorValues sample(const gtsam::VectorValues& parents) const;
+
+  gtsam::VectorValues sample(std::mt19937_64@ rng) const;
+  gtsam::VectorValues sample(const gtsam::VectorValues& parents, std::mt19937_64@ rng) const;
   gtsam::VectorValues sample() const;
-  
+  gtsam::VectorValues sample(const gtsam::VectorValues& parents) const;
+
   // Advanced Interface
   gtsam::VectorValues solveOtherRHS(const gtsam::VectorValues& parents,
                                     const gtsam::VectorValues& rhs) const;