diff --git a/nixos/modules/services/web-servers/lighttpd/default.nix b/nixos/modules/services/web-servers/lighttpd/default.nix
index d1cb8a8dc25..7a691aa7891 100644
--- a/nixos/modules/services/web-servers/lighttpd/default.nix
+++ b/nixos/modules/services/web-servers/lighttpd/default.nix
@@ -134,7 +134,7 @@ in
 
       port = mkOption {
         default = 80;
-        type = types.int;
+        type = types.port;
         description = ''
           TCP port number for lighttpd to bind to.
         '';