diff --git a/Makefile b/Makefile
index befa3a3..ee5b022 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 
-CFLAGS=-std=c11 -Wall
+CFLAGS=-std=gnu11 -Wall
 INCLUDE=-lssl -lcrypto -lmagic -lz -lmaxminddb -lbrotlienc
 LIBS=src/lib/*.c
 
diff --git a/src/lib/rev_proxy.c b/src/lib/rev_proxy.c
index 1f6e5b1..b629dcd 100644
--- a/src/lib/rev_proxy.c
+++ b/src/lib/rev_proxy.c
@@ -192,12 +192,15 @@ int rev_proxy_init(http_req *req, http_res *res, host_config *conf, sock *client
         goto proxy_err;
     }
 
-    struct hostent *host_ent = gethostbyname(conf->rev_proxy.hostname);
+    struct hostent *host_ent = gethostbyname2(conf->rev_proxy.hostname, AF_INET6);
     if (host_ent == NULL) {
-        res->status = http_get_status(503);
-        print(ERR_STR "Unable to connect to server: Name or service not known" CLR_STR);
-        sprintf(err_msg, "Unable to connect to server: Name or service not known.");
-        goto proxy_err;
+        host_ent = gethostbyname2(conf->rev_proxy.hostname, AF_INET);
+        if (host_ent == NULL) {
+            res->status = http_get_status(503);
+            print(ERR_STR "Unable to connect to server: Name or service not known" CLR_STR);
+            sprintf(err_msg, "Unable to connect to server: Name or service not known.");
+            goto proxy_err;
+        }
     }
 
     struct sockaddr_in6 address = {.sin6_family = AF_INET6, .sin6_port = htons(conf->rev_proxy.port)};