diff --git a/src/pkg/go/build/Makefile b/src/pkg/go/build/Makefile
index 349e00e801..1a18e00b88 100644
--- a/src/pkg/go/build/Makefile
+++ b/src/pkg/go/build/Makefile
@@ -11,7 +11,7 @@ GOFILES=\
 	path.go\
 	syslist.go\
 
-CLEANFILES+=syslist.go pkgtest/_obj cmdtest/_obj cgotest/_obj
+CLEANFILES+=pkgtest/_obj cmdtest/_obj cgotest/_obj
 
 include ../../../Make.pkg
 
diff --git a/src/pkg/go/build/syslist.go b/src/pkg/go/build/syslist.go
new file mode 100644
index 0000000000..0ee9821322
--- /dev/null
+++ b/src/pkg/go/build/syslist.go
@@ -0,0 +1,5 @@
+// Generated automatically by make.
+package build
+
+const goosList = "darwin freebsd linux netbsd openbsd plan9 windows "
+const goarchList = "386 amd64 arm "