diff --git a/module.nix b/module.nix
index a96810c..8ecd060 100644
--- a/module.nix
+++ b/module.nix
@@ -160,7 +160,7 @@ in
       originLanding = "https://${cfg.subdomain}.${sp.domain}/";
       originUrl = "https://${cfg.subdomain}.${sp.domain}/oauth/callback/generic";
       clientSystemdUnits = [ "writefreely.service" ];
-      enablePkce = false;
+      enablePkce = true;
       linuxUserOfClient = "writefreely";
       linuxGroupOfClient = "writefreely";
     };