diff --git a/ompi/mca/bcol/basesmuma/bcol_basesmuma_module.c b/ompi/mca/bcol/basesmuma/bcol_basesmuma_module.c
index 2a72b24e71..035b738dd9 100644
--- a/ompi/mca/bcol/basesmuma/bcol_basesmuma_module.c
+++ b/ompi/mca/bcol/basesmuma/bcol_basesmuma_module.c
@@ -84,10 +84,11 @@ static int free_lmsg_reduce_offsets_array(mca_bcol_basesmuma_module_t *sm_module
 static void
 mca_bcol_basesmuma_module_construct(mca_bcol_basesmuma_module_t *module)
 {
+    /* initialize all values to 0 */
+    bzero ((uintptr_t) module + sizeof (module->super), sizeof (*module) - sizeof (module->super));
     module->super.bcol_component = (mca_bcol_base_component_t *) &mca_bcol_basesmuma_component;
     module->super.list_n_connected = NULL;
     module->super.hier_scather_offset = 0;
-
 }
 
 static void