diff --git a/libc/kernel/common/linux/un.h b/libc/kernel/common/linux/un.h
new file mode 100644
index 0000000..5b51b7c
--- /dev/null
+++ b/libc/kernel/common/linux/un.h
@@ -0,0 +1,22 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_UN_H
+#define _LINUX_UN_H
+
+#define UNIX_PATH_MAX 108
+
+struct sockaddr_un {
+ sa_family_t sun_family;
+ char sun_path[UNIX_PATH_MAX];
+};
+
+#endif