diff --git a/Libraries/LibC/netinet/in.h b/Libraries/LibC/netinet/in.h
index 71802d633e6..a08040ca2a1 100644
--- a/Libraries/LibC/netinet/in.h
+++ b/Libraries/LibC/netinet/in.h
@@ -39,6 +39,8 @@ in_addr_t inet_addr(const char*);
 #define INADDR_NONE ((in_addr_t)-1)
 #define INADDR_LOOPBACK 0x7f000001
 
+#define IN_LOOPBACKNET 127
+
 #define IP_TTL 2
 
 #define IPPORT_RESERVED 1024
diff --git a/Libraries/LibC/netinet/tcp.h b/Libraries/LibC/netinet/tcp.h
index 48e7634d645..8dc5da8e32c 100644
--- a/Libraries/LibC/netinet/tcp.h
+++ b/Libraries/LibC/netinet/tcp.h
@@ -25,3 +25,5 @@
  */
 
 #pragma once
+
+#define TCP_NODELAY 10