diff --git a/monitor/main.c b/monitor/main.c
index df5bea12..7dec6e5d 100644
--- a/monitor/main.c
+++ b/monitor/main.c
@@ -156,7 +156,7 @@ static struct l_netlink *genl_lookup(const char *ifname)
 }
 
 static size_t rta_add(void *rta_buf, unsigned short type, uint16_t len,
-		      const void *data)
+			const void *data)
 {
 	unsigned short rta_len = RTA_LENGTH(len);
 	struct rtattr *rta = rta_buf;