diff --git a/server_http.hpp b/server_http.hpp
index 45063130e84fb9de6b0d1b4d8be705290d105602..ca4e42f97c6b34e2c7e9aeda5081385bf3965401 100644
--- a/server_http.hpp
+++ b/server_http.hpp
@@ -762,10 +762,15 @@ namespace SimpleWeb {
                 return;
               }
             }
-            if(response->session->request->http_version >= "1.1") {
-              auto new_session = std::make_shared<Session>(this->config.max_request_streambuf_size, response->session->connection);
-              this->read(new_session);
-              return;
+            try {
+              if(std::stof(response->session->request->http_version) >= 1.1) {
+                auto new_session = std::make_shared<Session>(this->config.max_request_streambuf_size, response->session->connection);
+                this->read(new_session);
+                return;
+              }
+            }
+            catch(const std::out_of_range &exception) {
+              std::cerr << "out of range; HTTP version is a too long number" << '\n';
             }
           }
           else if(this->on_error)