diff --git a/include/osmocom/vty/logging.h b/include/osmocom/vty/logging.h
index f4e28f8..e0011bf 100644
--- a/include/osmocom/vty/logging.h
+++ b/include/osmocom/vty/logging.h
@@ -4,8 +4,9 @@
 #define LOGGING_STR	"Configure log message to this terminal\n"
 #define FILTER_STR	"Filter log messages\n"
 
-void logging_vty_add_cmds(void);
-
+struct log_info;
+void logging_vty_add_cmds(const struct log_info *cat);
+struct vty;
 struct log_target *osmo_log_vty2tgt(struct vty *vty);
 
 #endif /* _VTY_LOGGING_H */