diff --git a/include/netinet/in_systm.h b/include/netinet/in_systm.h
new file mode 100644
index 0000000000..581326eb57
--- /dev/null
+++ b/include/netinet/in_systm.h
@@ -0,0 +1,10 @@
+#ifndef _NETINET_IN_SYSTM_H
+#define _NETINET_IN_SYSTM_H
+
+#include <stdint.h>
+
+typedef uint16_t n_short;
+typedef uint32_t n_long;
+typedef uint32_t n_time;
+
+#endif