diff --git a/install/authelia-install.sh b/install/authelia-install.sh
index 15257af62..514894e20 100644
--- a/install/authelia-install.sh
+++ b/install/authelia-install.sh
@@ -32,7 +32,9 @@ JWT_SECRET=$(openssl rand  -hex 64)
 SESSION_SECRET=$(openssl rand  -hex 64)
 STORAGE_KEY=$(openssl rand  -hex 64)
 DOMAIN=$(hostname -d)
-
+if [ -z "$DOMAIN" ]; then
+    DOMAIN=$(hostname)
+fi
 cat <<EOF >/etc/authelia/users.yml
 users:
   authelia: