1 files changed, 1 insertions, 0 deletions
diff --git a/mpi/mpiutil.c b/mpi/mpiutil.c
index cff15b74..a65d2361 100644
--- a/mpi/mpiutil.c
+++ b/mpi/mpiutil.c
@@ -397,6 +397,7 @@ gcry_mpi_set( gcry_mpi_t w, gcry_mpi_t u)
   MPN_COPY( wp, up, usize );
   w->nlimbs = usize;
   w->flags = u->flags;
+  w->flags &= ~(16|32); /* Reset the immutable and constant flags.  */
   w->sign = usign;
   return w;
 }