diff --git a/modules/environment/login/login-inner.nix b/modules/environment/login/login-inner.nix
index 5ba4b6c..d1e74f4 100644
--- a/modules/environment/login/login-inner.nix
+++ b/modules/environment/login/login-inner.nix
@@ -8,6 +8,8 @@ let
 in
 
 writeText "login-inner" ''
+  # This file is generated by nix-on-droid. DO NOT EDIT.
+
   set -e
 
   [ "$#" -gt 0 ] || echo "Welcome to Nix-on-Droid!"
diff --git a/modules/environment/login/login.nix b/modules/environment/login/login.nix
index 867dadc..a30fe58 100644
--- a/modules/environment/login/login.nix
+++ b/modules/environment/login/login.nix
@@ -9,6 +9,7 @@ in
 
 writeScript "login" ''
   #!/system/bin/sh
+  # This file is generated by nix-on-droid. DO NOT EDIT.
   set -e
 
   export USER="${config.user.userName}"