diff --git a/modules/server/dns/blocky/default.nix b/modules/server/dns/blocky/default.nix
index f246c7fe..f6dd2b85 100644
--- a/modules/server/dns/blocky/default.nix
+++ b/modules/server/dns/blocky/default.nix
@@ -229,5 +229,6 @@ in {
         };
       };
     };
+    networking.firewall.allowedUDPPorts = [ 53 ];
   };
 }