diff --git a/wgengine/userspace.go b/wgengine/userspace.go
index 73f8f5789..e0d40ac3b 100644
--- a/wgengine/userspace.go
+++ b/wgengine/userspace.go
@@ -575,6 +575,7 @@ func (e *userspaceEngine) Close() {
 
 	r := bufio.NewReader(strings.NewReader(""))
 	e.wgdev.IpcSetOperation(r)
+	e.wgdev.Close()
 	e.linkMon.Close()
 	e.router.Close()
 	e.magicConn.Close()