diff --git a/src/comm/tcp_socket.cpp b/src/comm/tcp_socket.cpp
index 778e5f160..de1891013 100644
--- a/src/comm/tcp_socket.cpp
+++ b/src/comm/tcp_socket.cpp
@@ -55,7 +55,11 @@ void TCPSocket::setupOptions()
 {
   int flag = 1;
   ur_setsockopt(socket_fd_, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(int));
+
+  // macOS does not have TCP_QUICKACK
+#ifdef TCP_QUICKACK
   ur_setsockopt(socket_fd_, IPPROTO_TCP, TCP_QUICKACK, &flag, sizeof(int));
+#endif
 
   if (recv_timeout_ != nullptr)
   {