diff --git a/bin/ovpn_genconfig b/bin/ovpn_genconfig
index 9500493..6a406f5 100755
--- a/bin/ovpn_genconfig
+++ b/bin/ovpn_genconfig
@@ -176,6 +176,7 @@ export OVPN_SERVER_URL OVPN_ENV OVPN_PROTO OVPN_CN OVPN_PORT
 export OVPN_CLIENT_TO_CLIENT OVPN_PUSH OVPN_NAT OVPN_DNS OVPN_MTU OVPN_DEVICE
 export OVPN_TLS_CIPHER OVPN_CIPHER OVPN_AUTH
 export OVPN_COMP_LZO
+export OVPN_OTP_AUTH
 
 # Preserve config
 if [ -f "$OVPN_ENV" ]; then