diff --git a/server_http.hpp b/server_http.hpp
index 5b3bb70..6f49477 100644
--- a/server_http.hpp
+++ b/server_http.hpp
@@ -558,7 +558,7 @@ namespace SimpleWeb {
       try {
         resource_function(response, session->request);
       }
-      catch(const std::exception &e) {
+      catch(const std::exception &) {
         if(on_error)
           on_error(session->request, make_error_code::make_error_code(errc::operation_canceled));
         return;