diff --git a/emmc-image.nix b/emmc-image.nix
index 34dd5cc..029298c 100644
--- a/emmc-image.nix
+++ b/emmc-image.nix
@@ -11,6 +11,7 @@
     ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
     mkdir -p files/etc/nixos
     cp -r ${pkgs.nix-gitignore.gitignoreSource [] ./.}/* ./files/etc/nixos/
+    chmod -R u+w files/etc/nixos
   '';
   system.build.sdImage = with lib;
     let