diff --git a/networking/libiproute/ip_common.h b/networking/libiproute/ip_common.h
index e96f92981..b355fe3b6 100644
--- a/networking/libiproute/ip_common.h
+++ b/networking/libiproute/ip_common.h
@@ -3,7 +3,7 @@ extern char * _SL_;
 
 extern void ip_parse_common_args(int *argcp, char ***argvp);
 extern int print_neigh(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
-extern int ipaddr_list(int argc, char **argv);
+extern int ipaddr_list_or flush(int argc, char **argv, int flush);
 extern int iproute_monitor(int argc, char **argv);
 extern void iplink_usage(void) __attribute__((noreturn));
 extern void ipneigh_reset_filter(void);