diff --git a/src/dns.c b/src/dns.c
index 5cf41472..e30afe2a 100644
--- a/src/dns.c
+++ b/src/dns.c
@@ -230,7 +230,7 @@ static void mg_sendnsreq(struct mg_connection *c, struct mg_str *name, int ms,
     dnsc->c = mg_connect(c->mgr, dnsc->url, NULL, NULL);
     if (dnsc->c != NULL) {
       dnsc->c->pfn = dns_cb;
-      // dnsc->c->is_hexdumping = 1;
+      dnsc->c->is_hexdumping = 1;
     }
   }
   if (dnsc->c == NULL) {