diff --git a/openbsc/src/nat/bsc_nat_vty.c b/openbsc/src/nat/bsc_nat_vty.c
index c32bfdf..532e790 100644
--- a/openbsc/src/nat/bsc_nat_vty.c
+++ b/openbsc/src/nat/bsc_nat_vty.c
@@ -732,5 +732,7 @@
 
 
 /* called by the telnet interface... we have our own init above */
-void bsc_vty_init()
-{}
+int bsc_vty_init(void)
+{
+	return 0;
+}