diff --git a/src/field/field3d.cxx b/src/field/field3d.cxx
index 16b9e7a50b..402cfef289 100644
--- a/src/field/field3d.cxx
+++ b/src/field/field3d.cxx
@@ -1052,5 +1052,6 @@ Field3DParallel& Field3DParallel::allocate() {
       }
     }
   }
+  resetRegionParallel();
   return *this;
 }