diff --git a/msc_tests/MSC_Tests.ttcn b/msc_tests/MSC_Tests.ttcn
index 29e8303..73466b6 100644
--- a/msc_tests/MSC_Tests.ttcn
+++ b/msc_tests/MSC_Tests.ttcn
@@ -495,6 +495,7 @@
 /* Send CM SERVICE REQ for IMSI that has never performed LU before */
 private function f_tc_cmserv_imsi_unknown(charstring id, BSC_ConnHdlrPars pars)
 runs on BSC_ConnHdlr {
+	g_pars := pars;
 
 	var MobileIdentityLV mi := valueof(ts_MI_IMSI_LV(g_pars.imsi));
 	var BSSMAP_IE_CellIdentifier cell_id := valueof(ts_CellId_CGI('262'H, '042'H, 23, 42));