diff --git a/BayesValidRox/BayesInference/BayesInference.py b/BayesValidRox/BayesInference/BayesInference.py
index 5befce85e5c9699cbb50ef02651ac7c05d922300..dcf817bd3bf15023583eda77174ed965b9534025 100644
--- a/BayesValidRox/BayesInference/BayesInference.py
+++ b/BayesValidRox/BayesInference/BayesInference.py
@@ -681,7 +681,7 @@ class BayesInference:
             nsteps = 1000 if self.NrofSamples is None else self.NrofSamples
             multiprocessing = True if self.MultiProcessMCMC is None else self.MultiProcessMCMC
             MCMC_ = MCMC(self, initsamples=initsamples, nwalkers=2*self.PCEModel.NofPa,
-                         nsteps = nsteps)
+                         nsteps = nsteps, multiprocessing=multiprocessing)
             self.Posterior_df = MCMC_.run_sampler(Data[0], TotalSigma2)