diff --git a/modules/services/networking/bind.nix b/modules/services/networking/bind.nix
index 54eb5e08e9be..4f69ff4c84a6 100644
--- a/modules/services/networking/bind.nix
+++ b/modules/services/networking/bind.nix
@@ -96,6 +96,14 @@ in
         }];
       };
 
+      configFile = mkOption {
+        default = confFile;
+        description = "
+          Overridable config file to use for named. By default, that
+          generated by nixos.
+        ";
+      };
+
     };
 
   };
@@ -113,7 +121,7 @@ in
             ${pkgs.coreutils}/bin/mkdir -p /var/run/named
           '';
 
-        exec = "${pkgs.bind}/sbin/named -c ${confFile} -f";
+        exec = "${pkgs.bind}/sbin/named -c ${cfg.configFile} -f";
       };
 
   };