diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 51933694b..22e3c1fd1 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -1022,6 +1022,7 @@ runs on RAW_PCU_Test_CT {
 	var boolean ok;
 	var uint32_t sched_fn;
 	var uint32_t dl_fn;
+	var uint32_t unused_fn;
 	var OCT4 tlli := '00000001'O;
 	var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init);
 	var CodingScheme cs_mcs;
@@ -1087,6 +1088,9 @@ runs on RAW_PCU_Test_CT {
 	/* DL Ass sets poll+rrbp requesting PACKET CONTROL ACK */
 	f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn);
 
+	/* PCU acks the UL data after having received CV=0) */
+	f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn);
+
 	/* After acking the dl assignment, dl tbf goes into FLOW state and PCU will provide DL data when BTS asks for it */
 	f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, exp_dl_cs_mcs);