diff --git a/evdns.c b/evdns.c
index 9a417999..e46f7bff 100644
--- a/evdns.c
+++ b/evdns.c
@@ -3304,7 +3304,8 @@ resolv_conf_parse_line(struct evdns_base *base, char *const start, int flags) {
 	if (!strcmp(first_token, "nameserver") && (flags & DNS_OPTION_NAMESERVERS)) {
 		const char *const nameserver = NEXT_TOKEN;
 
-		evdns_base_nameserver_ip_add(base, nameserver);
+		if (nameserver)
+			evdns_base_nameserver_ip_add(base, nameserver);
 	} else if (!strcmp(first_token, "domain") && (flags & DNS_OPTION_SEARCH)) {
 		const char *const domain = NEXT_TOKEN;
 		if (domain) {