diff --git a/flake.nix b/flake.nix
index a963a44..926be82 100644
--- a/flake.nix
+++ b/flake.nix
@@ -114,7 +114,7 @@
               wantedBy = [ "multi-user.target" ];
               after = [ "network.target" ];
               serviceConfig.ExecStart = ''
-                ${webdocs}/bin/nimyaml-docs-server --address "${cfg.address}" --port ${
+                ${webdocs}/bin/nimyaml-docs-server --address="${cfg.address}" --port=${
                   toString cfg.port
                 }'';
             };