diff --git a/src/mcp/client/auth/oauth2.py b/src/mcp/client/auth/oauth2.py
index 9e176980a..0e07cf8d7 100644
--- a/src/mcp/client/auth/oauth2.py
+++ b/src/mcp/client/auth/oauth2.py
@@ -269,8 +269,6 @@ async def _handle_protected_resource_response(self, response: httpx.Response) ->
 
             except ValidationError:
                 pass
-        else:
-            raise OAuthFlowError(f"Protected Resource Metadata request failed: {response.status_code}")
 
     def _select_scopes(self, init_response: httpx.Response) -> None:
         """Select scopes as outlined in the 'Scope Selection Strategy in the MCP spec."""