diff --git a/src/pkg/syscall/Makefile b/src/pkg/syscall/Makefile
index 5673da9d278..ca3338b10c8 100644
--- a/src/pkg/syscall/Makefile
+++ b/src/pkg/syscall/Makefile
@@ -9,6 +9,7 @@ GOFILES=\
 	errstr.go\
 	exec.go\
 	syscall.go\
+	syscall_$(GOARCH).go\
 	syscall_$(GOOS).go\
 	syscall_$(GOOS)_$(GOARCH).go\
 	zerrors_$(GOOS)_$(GOARCH).go\
diff --git a/src/pkg/syscall/syscall_386.go b/src/pkg/syscall/syscall_386.go
new file mode 100644
index 00000000000..cb948b87a2a
--- /dev/null
+++ b/src/pkg/syscall/syscall_386.go
@@ -0,0 +1,7 @@
+// Copyright 2010 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.
+
+package syscall
+
+const ARCH = "386"
diff --git a/src/pkg/syscall/syscall_amd64.go b/src/pkg/syscall/syscall_amd64.go
new file mode 100644
index 00000000000..75c3eac6f2a
--- /dev/null
+++ b/src/pkg/syscall/syscall_amd64.go
@@ -0,0 +1,7 @@
+// Copyright 2010 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.
+
+package syscall
+
+const ARCH = "amd64"
diff --git a/src/pkg/syscall/syscall_arm.go b/src/pkg/syscall/syscall_arm.go
new file mode 100644
index 00000000000..b9d1ca0c087
--- /dev/null
+++ b/src/pkg/syscall/syscall_arm.go
@@ -0,0 +1,7 @@
+// Copyright 2010 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.
+
+package syscall
+
+const ARCH = "arm"