diff --git a/start.sh b/start.sh
index 0ce7703..5d13c45 100755
--- a/start.sh
+++ b/start.sh
@@ -7,9 +7,11 @@ mkdir -p /app/data/home
 mkdir -p /app/data/database
 mkdir -p /app/data/tmp
 ln -sf /app/data/tmp /opt/www/tmp
-[ ! -e "/home/$ANTOS_USER" ] && ln -sf /app/data/home "/home/$ANTOS_USER"
-adduser --home "/home/$ANTOS_USER" --disabled-password --gecos "" "$ANTOS_USER"
-echo "$ANTOS_USER:$ANTOS_PASSWORD" | /bin/chpasswd
+if [ ! -z "$ANTOS_USER" ]; then
+    [ ! -e "/home/$ANTOS_USER" ] && ln -sf /app/data/home "/home/$ANTOS_USER"
+    adduser --home "/home/$ANTOS_USER" --disabled-password --gecos "" "$ANTOS_USER"
+    echo "$ANTOS_USER:$ANTOS_PASSWORD" | /bin/chpasswd
+fi
 # start antd-tunnel service
 [ ! -f "/app/antd-config.ini" ] && cp /opt/www/antd-config.ini /app/antd-config.ini
 [ ! -f "/app/runner.ini" ] && cp /opt/www/runner.ini /app/runner.ini