diff --git a/include/plan9/arm/u.h b/include/plan9/arm/u.h
new file mode 100644
index 0000000000..c387ae7b18
--- /dev/null
+++ b/include/plan9/arm/u.h
@@ -0,0 +1,14 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "/arm/include/u.h"
+
+typedef char   int8;
+typedef uchar  uint8;
+typedef short  int16;
+typedef ushort uint16;
+typedef int    int32;
+typedef uint   uint32;
+typedef vlong  int64;
+typedef uvlong uint64;