diff --git a/litellm/proxy/_experimental/mcp_server/discoverable_endpoints.py b/litellm/proxy/_experimental/mcp_server/discoverable_endpoints.py
index 0cd217ec96e..54aff86aab2 100644
--- a/litellm/proxy/_experimental/mcp_server/discoverable_endpoints.py
+++ b/litellm/proxy/_experimental/mcp_server/discoverable_endpoints.py
@@ -1133,7 +1133,6 @@ async def _persist_dcr_client_registration(
                 credentials=credentials,
                 oauth2_flow="authorization_code",
                 **({"token_url": mcp_server.token_url} if mcp_server.token_url else {}),
-                **({"authorization_url": mcp_server.authorization_url} if mcp_server.authorization_url else {}),
             ),
             touched_by="mcp_oauth_dcr",
         )
diff --git a/tests/test_litellm/proxy/_experimental/mcp_server/test_discoverable_endpoints.py b/tests/test_litellm/proxy/_experimental/mcp_server/test_discoverable_endpoints.py
index 66a14741fb1..f5ac229d119 100644
--- a/tests/test_litellm/proxy/_experimental/mcp_server/test_discoverable_endpoints.py
+++ b/tests/test_litellm/proxy/_experimental/mcp_server/test_discoverable_endpoints.py
@@ -657,7 +657,7 @@ async def test_register_client_persists_dcr_client_identity():
     update_data = mock_update.call_args.kwargs["data"]
     assert update_data.server_id == "remote_server"
     assert update_data.token_url == "https://provider.example/oauth/token"
-    assert update_data.authorization_url == "https://provider.example/oauth/authorize"
+    assert "authorization_url" not in update_data.fields_set()
     assert update_data.credentials["client_id"] == "generated-client"
     assert update_data.credentials["client_secret"] == "generated-secret"
     assert update_data.credentials["token_endpoint_auth_method"] == "client_secret_basic"