diff --git a/src/gprs/sgsn_auth.c b/src/gprs/sgsn_auth.c
index 50f2126..b8d8035 100644
--- a/src/gprs/sgsn_auth.c
+++ b/src/gprs/sgsn_auth.c
@@ -38,7 +38,7 @@
 
 const struct value_string *sgsn_auth_state_names = auth_state_names;
 
-void sgsn_auth_init(void)
+void sgsn_auth_init(struct sgsn_instance *sgsn)
 {
 	INIT_LLIST_HEAD(&sgsn->cfg.imsi_acl);
 }
diff --git a/src/gprs/sgsn_main.c b/src/gprs/sgsn_main.c
index 1c76d6f..798e507 100644
--- a/src/gprs/sgsn_main.c
+++ b/src/gprs/sgsn_main.c
@@ -432,7 +432,7 @@
 	bssgp_vty_init();
 	gprs_llc_vty_init();
 	gprs_sndcp_vty_init();
-	sgsn_auth_init();
+	sgsn_auth_init(sgsn);
 	sgsn_cdr_init(sgsn);
 	/* FIXME: register signal handler for SS_L_NS */