diff --git a/config/settings.py b/config/settings.py
index 1a79554..82241c4 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -51,6 +51,11 @@ ALLOWED_HOSTS = [
     "127.0.0.1",
     "localhost",
     "foxlog.flatlogic.app",
+    # Flatlogic's internal preview domain for this app — the platform's
+    # dashboard iframe loads the site through it. First added 29 May 2026
+    # as a VM-side autosave edit during the incident recovery; committed
+    # properly here so it survives `git reset --hard` deploys.
+    "fox-fitt-payroll-7de4.dev.flatlogic.app",
     os.getenv("HOST_FQDN", ""),
 ]