1 files changed, 1 insertions, 1 deletions
diff --git a/src/H5AC.c b/src/H5AC.c
index 0f35f7f..87ea0b7 100644
--- a/src/H5AC.c
+++ b/src/H5AC.c
@@ -333,7 +333,7 @@ H5AC_create(const H5F_t *f, H5AC_cache_config_t *config_ptr, H5AC_cache_image_co
         aux_ptr->sync_point_done     = NULL;
         aux_ptr->p0_image_len        = 0;
 
-        HDsprintf(prefix, "%d:", mpi_rank);
+        HDsnprintf(prefix, sizeof(prefix), "%d:", mpi_rank);
 
         if (mpi_rank == 0) {
             if (NULL == (aux_ptr->d_slist_ptr = H5SL_create(H5SL_TYPE_HADDR, NULL)))