diff --git a/test/gtest/ucg/test_cb.cc b/test/gtest/ucg/test_cb.cc
index 7dc68ae04c9..7b6a62c5255 100644
--- a/test/gtest/ucg/test_cb.cc
+++ b/test/gtest/ucg/test_cb.cc
@@ -94,8 +94,8 @@ TEST_F(ucg_cb_test, test_op_cb_init) {
     ((ucg_builtin_op_t *)op)->send_dt = dt_gen;
     ((ucg_builtin_op_t *)op)->recv_dt = dt_gen;
     ucg_builtin_op_step_t *step = &((ucg_builtin_op_t *)op)->steps[0];
-    step->bcopy.pack_state.dt.generic.state = (void *)step->recv_buffer;
-    step->bcopy.unpack_state.dt.generic.state = (void *)step->recv_buffer;
+    step->non_contig.pack_state.dt.generic.state = (void *)step->recv_buffer;
+    step->non_contig.unpack_state.dt.generic.state = (void *)step->recv_buffer;
     int *send_buf = (int *)params->send.buf;
     int *recv_buf = (int *)params->recv.buf;
     ucg_builtin_request_t *req = new ucg_builtin_request_t;
@@ -188,8 +188,8 @@ TEST_F(ucg_cb_test, test_op_cb_final) {
         recv_buf[i] = i;
     }
     step->recv_buffer = (int8_t *)recv_buf;
-    step->bcopy.pack_state.dt.generic.state = (void *)step->recv_buffer;
-    step->bcopy.unpack_state.dt.generic.state = (void *)step->recv_buffer;
+    step->non_contig.pack_state.dt.generic.state = (void *)step->recv_buffer;
+    step->non_contig.unpack_state.dt.generic.state = (void *)step->recv_buffer;
 
     ucg_builtin_request_t *req = new ucg_builtin_request_t;
     req->op = (ucg_builtin_op_t *)op;
@@ -288,7 +288,7 @@ TEST_F(ucg_cb_test, test_recv_cb_recv_one) {
     ASSERT_EQ(UCS_OK, ret);
 
     ucg_builtin_request_t *req = create_request(step);
-    req->step->bcopy.unpack_state.dt.generic.state = (void *)step->recv_buffer;
+    req->step->non_contig.unpack_state.dt.generic.state = (void *)step->recv_buffer;
     req->op->recv_dt = dt_gen;
     req->op->recv_dt->ops.unpack = coll_ucx_generic_datatype_unpack;
 
@@ -350,7 +350,7 @@ TEST_F(ucg_cb_test, test_recv_cb_recv_many) {
     ASSERT_EQ(UCS_OK, ret);
 
     ucg_builtin_request_t *req = create_request(step);
-    req->step->bcopy.unpack_state.dt.generic.state = (void *)step->recv_buffer;
+    req->step->non_contig.unpack_state.dt.generic.state = (void *)step->recv_buffer;
     req->op->recv_dt = dt_gen;
     req->op->recv_dt->ops.unpack = coll_ucx_generic_datatype_unpack;
 
diff --git a/test/gtest/ucg/ucg_test.cc b/test/gtest/ucg/ucg_test.cc
index 6c0f41ac056..af31e4c74b7 100644
--- a/test/gtest/ucg/ucg_test.cc
+++ b/test/gtest/ucg/ucg_test.cc
@@ -173,6 +173,11 @@ ucs_status_t resolve_address_callback(void *cb_group_obj, ucg_group_member_index
     return UCS_OK;
 }
 
+static ucg_group_member_index_t mpi_global_idx_dummy(void *cb_group_obj, ucg_group_member_index_t index)
+{
+    return 0;
+}
+
 ucg_group_params_t *ucg_resource_factory::create_group_params(
     ucg_rank_info my_rank_info, const std::vector<ucg_rank_info> &rank_infos)
 {
@@ -187,6 +192,7 @@ ucg_group_params_t *ucg_resource_factory::create_group_params(
     args->mpi_dt_convert = mca_coll_ucg_datatype_convert_for_ut;
     args->distance = (ucg_group_member_distance *) malloc(args->member_count * sizeof(*args->distance));
     args->node_index = (uint16_t *) malloc(args->member_count * sizeof(*args->node_index));
+    args->mpi_global_idx_f = mpi_global_idx_dummy;
 
     for (size_t i = 0; i < rank_infos.size(); i++) {
         if (rank_infos[i].rank == my_rank_info.rank) {