diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 98d439af9..e10d967b0 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -491,7 +491,7 @@ private function f_trxc_fake_rssi(TRXC_RSSI rssi) runs on ConnHdlr {
 	ret := f_TRXC_transceive(BTS_TRXC, g_bts_trxc_conn_id, valueof(ts_TRXC_FAKE_RSSI(rssi)));
 }
 
-private function f_trx_fake_toffs256(int16_t toffs256) runs on ConnHdlr {
+private function f_trxc_fake_toffs256(int16_t toffs256) runs on ConnHdlr {
 	var TrxcMessage ret;
 	ret := f_TRXC_transceive(BTS_TRXC, g_bts_trxc_conn_id, valueof(ts_TRXC_FAKE_TIMING(toffs256)));
 }
@@ -1863,7 +1863,7 @@ function f_TC_meas_res_periodic(charstring id) runs on ConnHdlr {
 
 	if (mp_bts_trxc_port != -1) {
 		f_trxc_fake_rssi(rxlev2dbm(mp_ul_rxlev_exp));
-		f_trx_fake_toffs256(g_pars.l1_pars.timing_offset_256syms);
+		f_trxc_fake_toffs256(g_pars.l1_pars.timing_offset_256syms);
 	}
 
 	f_est_dchan();
@@ -2031,7 +2031,7 @@ function f_tc_rsl_chan_initial_ta(charstring id) runs on ConnHdlr {
 	RSL.clear;
 
 	/* tell fake_trx to use a given timing offset for all bursts */
-	f_trx_fake_toffs256(ta_to_test*256);
+	f_trxc_fake_toffs256(ta_to_test*256);
 
 	f_est_dchan(more_ies :={valueof(t_RSL_IE(RSL_IE_TIMING_ADVANCE, RSL_IE_Body:{timing_adv := ta_to_test}))} );