diff --git a/src/utils/PastisUtils.cpp b/src/utils/PastisUtils.cpp
index a570a894f5695bae68d0698746eda171b60002fa..9494c68a7f8fcf5e48a885c7def1269b55d366e2 100644
--- a/src/utils/PastisUtils.cpp
+++ b/src/utils/PastisUtils.cpp
@@ -34,6 +34,7 @@ std::string initialize(int& argc, char* argv[])
          }();
     if (mpi_rank != 0) {
       pout.setOutput(null_stream);
+      perr.setOutput(null_stream);
     }
   }
 #endif // PASTIS_HAS_MPI