diff --git a/libc/kernel/common/linux/uio.h b/libc/kernel/common/linux/uio.h
new file mode 100644
index 0000000..b0895af
--- /dev/null
+++ b/libc/kernel/common/linux/uio.h
@@ -0,0 +1,27 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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_UIO_H
+#define __LINUX_UIO_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+struct iovec
+{
+ void __user *iov_base;
+ __kernel_size_t iov_len;
+};
+
+#define UIO_FASTIOV 8
+#define UIO_MAXIOV 1024
+
+#endif