1 files changed, 1 insertions, 1 deletions

diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
index eefc55d6b7f5..6bfc41f62b8f 100644
--- a/lib/mpi/mpiutil.c
+++ b/lib/mpi/mpiutil.c
@@ -135,7 +135,7 @@ int mpi_copy(MPI *copied, const MPI a)
         size_t i;
         MPI b;
 
-        *copied = MPI_NULL;
+        *copied = NULL;
 
         if (a) {
                 b = mpi_alloc(a->nlimbs);