diff --git a/Dockerfile b/Dockerfile
index 61b7cc3..abe611d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,7 @@ ENV SURFSHARK_USER=
 ENV SURFSHARK_PASSWORD=
 ENV SURFSHARK_COUNTRY=
 ENV SURFSHARK_CITY=
+ENV OPENVPN_OPTS=
 ENV CONNECTION_TYPE=tcp
 ENV LAN_NETWORK=
 HEALTHCHECK --interval=60s --timeout=10s --start-period=30s CMD curl -L 'https://ipinfo.io'