diff --git a/lib/test/upper/CMakeLists.txt b/lib/test/upper/CMakeLists.txt
index b5d49f71d..127bccec7 100644
--- a/lib/test/upper/CMakeLists.txt
+++ b/lib/test/upper/CMakeLists.txt
@@ -34,6 +34,7 @@ add_executable(rlc_stress_test rlc_stress_test.cc)
 target_link_libraries(rlc_stress_test srslte_upper srslte_phy srslte_common ${Boost_LIBRARIES})
 add_test(rlc_am_stress_test rlc_stress_test --duration 10 --mode="AM")
 add_test(rlc_um_stress_test rlc_stress_test --duration 10 --mode="UM")
+add_test(rlc_um_stress_test rlc_stress_test --duration 10 --mode="TM" -opp_sdu_ratio=1.0)
 
 add_executable(rlc_um_data_test rlc_um_data_test.cc)
 target_link_libraries(rlc_um_data_test srslte_upper srslte_phy srslte_common)