diff --git a/src/core/dns.c b/src/core/dns.c
index 967fca4a..f66819a6 100644
--- a/src/core/dns.c
+++ b/src/core/dns.c
@@ -1468,7 +1468,7 @@ dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, dns_found_call
 #if LWIP_IPV4 && LWIP_IPV6
     if ((IP_IS_V6(addr) && (dns_addrtype != LWIP_DNS_ADDRTYPE_IPV4)) ||
        !(IP_IS_V6(addr) && (dns_addrtype != LWIP_DNS_ADDRTYPE_IPV6)))
-#endif LWIP_IPV4 && LWIP_IPV6
+#endif /* LWIP_IPV4 && LWIP_IPV6 */
     {
       return ERR_OK;
     }