diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 9ea026951..2b3703fb2 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -8602,7 +8602,7 @@ private function f_TC_refuse_mode_modif_to_vamos(charstring id) runs on MSC_Conn
 
 	f_establish_fully(ass_cmd, exp_compl);
 
-	f_vty_transceive(BSCVTY, "vamos modify lchan 0 0 1 0 tsc 2 3");
+	f_vty_transceive(BSCVTY, "bts 0 trx 0 timeslot 1 sub-slot 0 modify vamos tsc 2 3");
 
 	var RSL_Message rsl;