diff --git a/bitmask_go/launcher_windows.go b/bitmask_go/launcher_windows.go
index ddebfbe882fb071a2b4ca1878ee75dcbb071a470..d0effa4512ff4fe0d08283a2a3bc654bb541e95b 100644
--- a/bitmask_go/launcher_windows.go
+++ b/bitmask_go/launcher_windows.go
@@ -57,7 +57,7 @@ func (l *launcher) firewallStop() error {
 
 func (l *launcher) send(cmd string, args ...string) error {
 	if args == nil {
-		args = []string{}
+		args = "null"
 	}
 	command := struct {
 		Cmd  string `json:"cmd"`