diff --git a/src/core/dns.c b/src/core/dns.c
index 2fe13172..3a6c3f9c 100644
--- a/src/core/dns.c
+++ b/src/core/dns.c
@@ -1404,7 +1404,6 @@ err_t
 dns_gethostbyname(const char *hostname, ip_addr_t *addr, dns_found_callback found,
                   void *callback_arg)
 {
-#if LWIP_IPV4 && LWIP_IPV6
   return dns_gethostbyname_addrtype(hostname, addr, found, callback_arg, LWIP_DNS_ADDRTYPE_DEFAULT);
 }
 
@@ -1418,7 +1417,6 @@ err_t
 dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, dns_found_callback found,
                            void *callback_arg, u8_t dns_addrtype)
 {
-#endif /* LWIP_IPV4 && LWIP_IPV6 */
   size_t hostnamelen;
   /* not initialized or no valid server yet, or invalid addr pointer
    * or invalid hostname or invalid hostname length */
@@ -1472,20 +1470,12 @@ dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, dns_found_call
       return ERR_OK;
     }
   }
+#else /* LWIP_IPV4 && LWIP_IPV6 */
+  LWIP_UNUSED_ARG(dns_addrtype);
 #endif /* LWIP_IPV4 && LWIP_IPV6 */
 
   /* queue query with specified callback */
   return dns_enqueue(hostname, hostnamelen, found, callback_arg LWIP_DNS_ADDRTYPE_ARG(dns_addrtype));
 }
 
-#if !LWIP_IPV4 || !LWIP_IPV6
-err_t
-dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, dns_found_callback found,
-                           void *callback_arg, u8_t dns_addrtype)
-{
-  LWIP_UNUSED_ARG(dns_addrtype);
-  return dns_gethostbyname(hostname, addr, found, callback_arg);
-}
-#endif /* LWIP_IPV4 && LWIP_IPV6 */
-
 #endif /* LWIP_DNS */