diff --git a/transmission_openvpn/config.json b/transmission_openvpn/config.json
index e9cd634b1..ab25370bf 100644
--- a/transmission_openvpn/config.json
+++ b/transmission_openvpn/config.json
@@ -89,7 +89,7 @@
     "networkdisks": "str?",
     "pass": "str?",
     "user": "str?",
-    "OPENVPN_PROVIDER": "str",
+    "OPENVPN_PROVIDER": "list(|ANONINE|ANONVPN|BLACKVPN|BTGUARD|CRYPTOSTORM|EXPRESSVPN|FASTESTVPN|FREEVPN|FROOT|FROSTVPN|GETFLIX|GHOSTPATH|GIGANEWS|HIDEME|HIDEMYASS|INTEGRITYVPN|IPVANISH|IRONSOCKET|IVACY|IVPN|MULLVAD|NORDVPN|OCTANEVPN|OVPN|PIA|PRIVADO|PRIVATEVPN|PROTONVPN|PROXPN|PUREVPN|RA4W|SAFERVPN|SLICKVPN|SLICKVPNCORE|SMARTDNSPROXY|SMARTVPN|SURFSHARK|TIGER|TORGUARD|TRUSTZONE|TUNNELBEAR|VPNAC|VPNAREA|VPNBOOK|VPNFACILE|VPNHT|VPNTUNNEL|VPNUNLIMITED|VYPRVPN|WINDSCRIBE|ZOOGVPN)",
     "OPENVPN_CONFIG": "str?",
     "OPENVPN_USERNAME": "str",
     "OPENVPN_PASSWORD": "str",