diff --git a/limits_plan9.go b/limits_plan9.go
new file mode 100644
index 000000000..c1c03dc1e
--- /dev/null
+++ b/limits_plan9.go
@@ -0,0 +1,10 @@
+// Copyright (c) 2013 Conformal Systems LLC.
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package main
+
+// Plan 9 has no process accounting. no-op here
+func setLimits() error {
+	return nil
+}
diff --git a/limits_unix.go b/limits_unix.go
index 44e2541c8..c20ca671f 100644
--- a/limits_unix.go
+++ b/limits_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 
-// +build !windows
+// +build !windows,!plan9
 
 package main