diff --git a/BTCPayServer/Extensions.cs b/BTCPayServer/Extensions.cs
index 5225472b1..2774fdcce 100644
--- a/BTCPayServer/Extensions.cs
+++ b/BTCPayServer/Extensions.cs
@@ -185,7 +185,7 @@ namespace BTCPayServer
             }
             if(IPAddress.TryParse(server, out var ip))
             {
-                return ip.IsLocal();
+                return ip.IsLocal() || ip.IsRFC1918();
             }
             return false;
         }