diff --git a/spec/koumakyou/default.nix b/spec/koumakyou/default.nix
index 186d5e10..0bba4365 100644
--- a/spec/koumakyou/default.nix
+++ b/spec/koumakyou/default.nix
@@ -14,6 +14,7 @@
   home = {
     vscode.enable = true;
     minecraft.enable = true;
+    minecraft.user = "app";
   };
 
   users.homeModules = [ {