diff --git a/sit b/sit
index 1974b8f..722f1cf 100755
--- a/sit
+++ b/sit
@@ -77,6 +77,7 @@ else
                     module swap $COMPILER $COMPILER/$COMPILER_VERSION
                 fi
             fi
+            MPI_DIR=$MPICH_DIR
             ;;
         laki|*)
             if [ -z "$COMPILER_VERSION" ] ; then