diff --git a/scripts/bundles/desktop_inputs.py b/scripts/bundles/desktop_inputs.py
index 375ca9a0f8..5a21f163d9 100644
--- a/scripts/bundles/desktop_inputs.py
+++ b/scripts/bundles/desktop_inputs.py
@@ -47,11 +47,12 @@ def identity_environment(request: BuildRequest, variant: str, inherited: Mapping
     request.validate_channel()
     if request.channel_request is not None and variant != "bundled":
         raise ValueError("channel builds currently support only the bundled variant")
+    bundle_env = {**request.bundle_env, "HERMES_GUEST_ONBOARDING": "1"} if variant == "store" else request.bundle_env
     env = dict(inherited)
     env.update(CI="true", PYTHONUTF8="1", GITHUB_SHA=request.commit,
                HERMES_DESKTOP_VARIANT=variant,
                HERMES_PAYLOAD_VERSION=request.version,
-               HERMES_BUNDLE_ENV_JSON=json.dumps(request.bundle_env, sort_keys=True))
+               HERMES_BUNDLE_ENV_JSON=json.dumps(bundle_env, sort_keys=True))
     if request.release_epoch is None:
         env.pop("HERMES_RELEASE_EPOCH", None)
     else: