diff --git a/openbsc/src/bs11_config.c b/openbsc/src/bs11_config.c
index a7493b4..d8819d3 100644
--- a/openbsc/src/bs11_config.c
+++ b/openbsc/src/bs11_config.c
@@ -697,7 +697,8 @@
 }
 
 int nm_state_event(enum nm_evt evt, u_int8_t obj_class, void *obj,
-		   struct gsm_nm_state *old_state, struct gsm_nm_state *new_state)
+		   struct gsm_nm_state *old_state, struct gsm_nm_state *new_state,
+		   struct abis_om_obj_inst *obj_ins)
 {
 	return 0;
 }