diff --git a/modules/environment/login/login-inner.nix b/modules/environment/login/login-inner.nix
index 487e64c..f558f6c 100644
--- a/modules/environment/login/login-inner.nix
+++ b/modules/environment/login/login-inner.nix
@@ -17,9 +17,12 @@ writeText "login-inner" ''
   [ "$#" -gt 0 ] || echo "If nothing works, use the rescue shell and read ${config.build.installationDir}/usr/lib/login-inner"
   [ "$#" -gt 0 ] || echo "If it does not help, report bugs at https://github.com/t184256/nix-on-droid-bootstrap/issues"
 
+  ${lib.optionalString (! config.build.initialBuild) ''
   set +u
   . "/nix/var/nix/profiles/per-user/$USER/profile/etc/profile.d/nix-on-droid-session-init.sh"
   set -u
+  ''
+  }
 
   ${lib.optionalString config.build.initialBuild ''
     if [ -e /etc/UNINTIALISED ]; then