diff --git a/library/NS_Provider_FR.ttcn b/library/NS_Provider_FR.ttcn
index 5387b0f..1cb02dd 100644
--- a/library/NS_Provider_FR.ttcn
+++ b/library/NS_Provider_FR.ttcn
@@ -27,11 +27,11 @@
 	var boolean pvc_active := false;
 };
 
-function main(NSConfiguration config, charstring id) runs on NS_Provider_FR_CT system af_packet {
+function main(NSVCConfiguration config, NSConfiguration nsconfig, charstring id) runs on NS_Provider_FR_CT system af_packet {
 
 	/* start Frame Relay Emulation */
 	vc_FREMU := FR_Emulation_CT.create(id & "-FRemu");
-	var Q933em_Config q933_cfg := valueof(ts_Q933em_Config(ats_is_user := not config.role_sgsn, bidirectional := false));
+	var Q933em_Config q933_cfg := valueof(ts_Q933em_Config(ats_is_user := not nsconfig.role_sgsn, bidirectional := false));
 	q933_cfg.T391 := 1.0;
 	map(vc_FREMU:FR, system:AF_PACKET) param (config.provider.fr.netdev);
 	vc_FREMU.start(FrameRelay_Emulation.main(q933_cfg));