diff --git a/hosts/installer.nix b/hosts/installer.nix
index 492298a..d7118f7 100644
--- a/hosts/installer.nix
+++ b/hosts/installer.nix
@@ -17,4 +17,12 @@ ${builtins.readFile ../docs/install-help.txt}
 
 Login: \l
   '';
+
+  # Include the flake and installer script on the ISO.
+  isoImage.contents = [
+    {
+      source = ../.;
+      target = "/etc/nixos";
+    }
+  ];
 }