diff --git a/libc/include/net/if_ieee1394.h b/libc/include/net/if_ieee1394.h
index 5a61581..2f8a7c3 100644
--- a/libc/include/net/if_ieee1394.h
+++ b/libc/include/net/if_ieee1394.h
@@ -39,6 +39,8 @@
 #ifndef _NET_IF_IEEE1394_H_
 #define _NET_IF_IEEE1394_H_
 
+#include <sys/types.h>
+
 /* hardware address information for arp / nd */
 struct ieee1394_hwaddr {
 	u_int8_t	iha_uid[8];		/* node unique ID */
diff --git a/libc/include/netinet/in_systm.h b/libc/include/netinet/in_systm.h
index ff53fb7..7e474ba 100644
--- a/libc/include/netinet/in_systm.h
+++ b/libc/include/netinet/in_systm.h
@@ -34,6 +34,8 @@
 #ifndef _NETINET_IN_SYSTM_H_
 #define _NETINET_IN_SYSTM_H_
 
+#include <sys/types.h>
+
 /*
  * Miscellaneous internetwork
  * definitions for kernel.
diff --git a/libc/include/netinet/ip6.h b/libc/include/netinet/ip6.h
index aa816c2..aa89186 100644
--- a/libc/include/netinet/ip6.h
+++ b/libc/include/netinet/ip6.h
@@ -64,6 +64,10 @@
 #ifndef _NETINET_IP6_H_
 #define _NETINET_IP6_H_
 
+#include <sys/types.h>
+
+#include <linux/in6.h>
+
 /*
  * Definition for internet protocol version 6.
  * RFC 2460
diff --git a/libc/include/netinet/tcp.h b/libc/include/netinet/tcp.h
index 5601645..e95cc09 100644
--- a/libc/include/netinet/tcp.h
+++ b/libc/include/netinet/tcp.h
@@ -29,6 +29,8 @@
 #ifndef _NETINET_TCP_H
 #define _NETINET_TCP_H
 
+#include <sys/cdefs.h>
+
 #include <linux/tcp.h>
 
 __BEGIN_DECLS