diff --git a/include/osmocom/iuh/hnbgw_cn.h b/include/osmocom/iuh/hnbgw_cn.h
index 93123f2..2e61d82 100644
--- a/include/osmocom/iuh/hnbgw_cn.h
+++ b/include/osmocom/iuh/hnbgw_cn.h
@@ -2,5 +2,4 @@
 
 #include <osmocom/iuh/hnbgw.h>
 
-int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port,
-		      const char *local_ip, uint32_t local_pc);
+int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port, const char *local_ip);