diff --git a/control_plan9.go b/control_plan9.go
new file mode 100644
index 0000000..a8f7f34
--- /dev/null
+++ b/control_plan9.go
@@ -0,0 +1,9 @@
+package reuseport
+
+import (
+	"syscall"
+)
+
+func Control(network, address string, c syscall.RawConn) error {
+	return nil
+}
diff --git a/control_unix.go b/control_unix.go
index e75242a..9f37d2c 100644
--- a/control_unix.go
+++ b/control_unix.go
@@ -1,4 +1,4 @@
-// +build !windows,!wasm
+// +build !plan9,!windows,!wasm
 
 package reuseport