diff --git a/docs/generic-oauth.md b/docs/generic-oauth.md
index 6620134fc..08b735ccb 100644
--- a/docs/generic-oauth.md
+++ b/docs/generic-oauth.md
@@ -40,7 +40,7 @@ following values in your Git configuration:
 
 - Client ID
 - Client Secret (optional)
-- Redirect URL
+- Redirect URL (optional, defaults to `http://127.0.0.1`)
 - Scopes (optional)
 - OAuth Endpoints
   - Authorization Endpoint
diff --git a/src/shared/Core/GenericOAuthConfig.cs b/src/shared/Core/GenericOAuthConfig.cs
index 0e2a74b75..1f8aa16fb 100644
--- a/src/shared/Core/GenericOAuthConfig.cs
+++ b/src/shared/Core/GenericOAuthConfig.cs
@@ -81,9 +81,7 @@ public static bool TryGet(ITrace trace, ISettings settings, Uri remoteUri, out G
             }
             else
             {
-                trace.WriteLine($"Invalid OAuth configuration - missing/invalid redirect URI: {redirectUrl}");
-                config = null;
-                return false;
+                config.RedirectUri = new Uri("http://127.0.0.1");
             }
 
             if (settings.TryGetSetting(