diff --git a/Kernel/API/POSIX/sys/socket.h b/Kernel/API/POSIX/sys/socket.h
index fa4301d201..a945dcabec 100644
--- a/Kernel/API/POSIX/sys/socket.h
+++ b/Kernel/API/POSIX/sys/socket.h
@@ -43,10 +43,13 @@ extern "C" {
 
 #define IPPROTO_IP 0
 #define IPPROTO_ICMP 1
+#define IPPROTO_IGMP 2
+#define IPPROTO_IPIP 4
 #define IPPROTO_TCP 6
 #define IPPROTO_UDP 17
 #define IPPROTO_IPV6 41
 #define IPPROTO_ICMPV6 58
+#define IPPROTO_RAW 255
 
 #define MSG_TRUNC 0x1
 #define MSG_CTRUNC 0x2