--- a/torch/csrc/distributed/c10d/control_plane/WorkerServer.cpp
+++ b/torch/csrc/distributed/c10d/control_plane/WorkerServer.cpp
@@ -13,19 +13,21 @@ namespace c10d::control_plane {
 namespace {
 class RequestImpl : public Request {
  public:
-  RequestImpl(const httplib::Request& req) : req_(req) {}
+  RequestImpl(const httplib::Request& req)
+      : req_(req), params_(req.params.begin(), req.params.end()) {}

   const std::string& body() const override {
     return req_.body;
   }

   const std::multimap<std::string, std::string>& params() const override {
-    return req_.params;
+    return params_;
   }

  private:
   // NOLINTNEXTLINE(cppcoreguidelines-avoid-const-or-ref-data-members)
   const httplib::Request& req_;
+  std::multimap<std::string, std::string> params_;
 };

 class ResponseImpl : public Response {