diff --git a/degesch.c b/degesch.c
index 440b588..6a25c18 100644
--- a/degesch.c
+++ b/degesch.c
@@ -4061,9 +4061,9 @@ irc_fetch_next_nickname (struct server *s)
 	split_str_ignore_empty (get_config_string (s->config, "nicks"), ',', &v);
 
 	char *result = NULL;
-	if (s->nick_counter >= 0 && s->nick_counter < v.len)
+	if (s->nick_counter >= 0 && (size_t) s->nick_counter < v.len)
 		result = str_vector_steal (&v, s->nick_counter++);
-	if (s->nick_counter >= v.len)
+	if ((size_t) s->nick_counter >= v.len)
 		// Exhausted all nicknames
 		s->nick_counter = -1;