diff --git a/nixos/modules/services/development/zammad.nix b/nixos/modules/services/development/zammad.nix
index 4279ebe82d15..dc3a6d104696 100644
--- a/nixos/modules/services/development/zammad.nix
+++ b/nixos/modules/services/development/zammad.nix
@@ -273,7 +273,7 @@ in
         if [ `${config.services.postgresql.package}/bin/psql \
                   --host ${cfg.database.host} \
                   ${optionalString
-                    (cfg.database.port != null) 
+                    (cfg.database.port != null)
                     "--port ${toString cfg.database.port}"} \
                   --username ${cfg.database.user} \
                   --dbname ${cfg.database.name} \