diff --git a/src/uct/ib/rdmacm/rdmacm_cm.c b/src/uct/ib/rdmacm/rdmacm_cm.c
index f1fe84b82d9..6521c621873 100644
--- a/src/uct/ib/rdmacm/rdmacm_cm.c
+++ b/src/uct/ib/rdmacm/rdmacm_cm.c
@@ -415,10 +415,10 @@ static uct_iface_ops_t uct_rdmacm_cm_iface_ops = {
     .ep_disconnect            = uct_rdmacm_cm_ep_disconnect,
     .ep_destroy               = UCS_CLASS_DELETE_FUNC_NAME(uct_rdmacm_cm_ep_t),
     .ep_put_short             = (uct_ep_put_short_func_t)ucs_empty_function_return_unsupported,
-    .ep_put_bcopy             = (uct_ep_put_bcopy_func_t)ucs_empty_function_return_zero_int64,
+    .ep_put_bcopy             = (uct_ep_put_bcopy_func_t)ucs_empty_function_return_unsupported,
     .ep_get_bcopy             = (uct_ep_get_bcopy_func_t)ucs_empty_function_return_unsupported,
     .ep_am_short              = (uct_ep_am_short_func_t)ucs_empty_function_return_unsupported,
-    .ep_am_bcopy              = (uct_ep_am_bcopy_func_t)ucs_empty_function_return_zero_int64,
+    .ep_am_bcopy              = (uct_ep_am_bcopy_func_t)ucs_empty_function_return_unsupported,
     .ep_atomic_cswap64        = (uct_ep_atomic_cswap64_func_t)ucs_empty_function_return_unsupported,
     .ep_atomic64_post         = (uct_ep_atomic64_post_func_t)ucs_empty_function_return_unsupported,
     .ep_atomic64_fetch        = (uct_ep_atomic64_fetch_func_t)ucs_empty_function_return_unsupported,