diff --git a/backtracks/backtracks.py b/backtracks/backtracks.py
index 098f0ac..8d9dd05 100644
--- a/backtracks/backtracks.py
+++ b/backtracks/backtracks.py
@@ -649,7 +649,7 @@ def fit(self, dlogz=0.5, npool=4, dynamic=False, nlive=200, mpi_pool=False, resu
         print('[BACKTRACKS INFO]: Beginning sampling')
         ndim = self.ndim
 
-        if not mpi_pool:
+        if mpi_pool:
             with dynesty.pool.Pool(npool, self.loglike, self.prior_transform) as pool:
                 if dynamic:
                     if resume: