1 files changed, 8 insertions, 0 deletions
diff --git a/http/http_response.hpp b/http/http_response.hpp
index 1a4ef16d4e..06b693915f 100644
--- a/http/http_response.hpp
+++ b/http/http_response.hpp
@@ -16,10 +16,18 @@ namespace crow
 template <typename Adaptor, typename Handler>
 class Connection;
 
+namespace sse_socket
+{
+template <typename Adaptor>
+class ConnectionImpl;
+} // namespace sse_socket
+
 struct Response
 {
     template <typename Adaptor, typename Handler>
     friend class crow::Connection;
+    template <typename Adaptor>
+    friend class crow::sse_socket::ConnectionImpl;
     using response_type =
         boost::beast::http::response<boost::beast::http::string_body>;