diff --git a/server_http.hpp b/server_http.hpp
index a52e16e..1d5f68a 100644
--- a/server_http.hpp
+++ b/server_http.hpp
@@ -351,7 +351,7 @@ namespace SimpleWeb {
       std::string address;
       /// Set to false to avoid binding the socket to an address that is already in use. Defaults to true.
       bool reuse_address = true;
-      /// Makes use of RFC 7413 or TCP Fast Open (TFO)
+      /// Make use of RFC 7413 or TCP Fast Open (TFO)
       bool fast_open = false;
     };
     /// Set before calling start().
diff --git a/utility.hpp b/utility.hpp
index 0e4ee3c..0837f20 100644
--- a/utility.hpp
+++ b/utility.hpp
@@ -35,24 +35,14 @@ namespace SimpleWeb {
   {
 #if defined(__linux__)
     std::ifstream ifs("/proc/sys/net/ipv4/tcp_fastopen");
-    if (!ifs.is_open()) { return false; }
+    if (!ifs) { return false; }
     std::string line;
     if (!std::getline(ifs, line)) { return false; }
     std::istringstream iss(line);
-    uint8_t value = 0;
+    int value = 0;
     iss >> value;
-    if (iss.fail()) { return false; } // Should never happen in theory.
-    auto mode_matches_request = [](const connection_mode mode, const uint8_t value)
-    {
-      const auto m = static_cast<uint8_t>(mode);
-      if (mode == connection_mode::client ||
-          mode == connection_mode::server)
-      {
-        return (m & value) != 0;
-      }
-      return false;
-    };
-    return mode_matches_request(mode, value);
+    if (!iss) { return false; } // Should never happen in theory.
+    return (static_cast<int>(mode) & value) != 0;
 #else
     (void)mode;
     return false;