diff --git a/smol/moca/sampler/sampler.py b/smol/moca/sampler/sampler.py
index 18725f2b1..00d982a23 100644
--- a/smol/moca/sampler/sampler.py
+++ b/smol/moca/sampler/sampler.py
@@ -95,7 +95,9 @@ def from_ensemble(
         if kernel_type is None:
             kernel_type = "Metropolis"
 
-        mckernel = mckernel_factory(kernel_type, ensemble, step_type, *args, **kwargs)
+        mckernel = mckernel_factory(
+            kernel_type, ensemble, step_type, seed=seed, *args, **kwargs
+        )
         # get a trial trace to initialize sample container trace
         _trace = mckernel.compute_initial_trace(np.zeros(ensemble.num_sites, dtype=int))
         sample_trace = Trace(
diff --git a/tests/test_moca/test_sampler.py b/tests/test_moca/test_sampler.py
index 5549e57e9..455e6ac3d 100644
--- a/tests/test_moca/test_sampler.py
+++ b/tests/test_moca/test_sampler.py
@@ -11,9 +11,9 @@
 
 
 @pytest.fixture(params=[1, 5])
-def sampler(ensemble, request):
+def sampler(ensemble, rng, request):
     sampler = Sampler.from_ensemble(
-        ensemble, temperature=TEMPERATURE, nwalkers=request.param
+        ensemble, temperature=TEMPERATURE, seed=rng, nwalkers=request.param
     )
     # fix this additional attribute to sampler to access in gen occus for tests
     sampler.num_sites = ensemble.num_sites