diff --git a/pcu/GPRS_Components.ttcn b/pcu/GPRS_Components.ttcn
index f9a39a6..e248860 100644
--- a/pcu/GPRS_Components.ttcn
+++ b/pcu/GPRS_Components.ttcn
@@ -1189,7 +1189,7 @@
 
 function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block,
 					template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum)
-runs on MS_BTS_IFACE_CT {
+runs on MS_BTS_IFACE_CT return uint32_t {
 	var uint32_t dl_fn;
 
 	f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr);
@@ -1197,6 +1197,7 @@
 		setverdict(fail, "Failed to match Packet DUMMY DL");
 		f_shutdown(__BFILE__, __LINE__);
 	}
+	return dl_fn;
 }
 
 function f_rx_rlcmac_dl_block_exp_pkt_pag_req(out RlcmacDlBlock dl_block,