diff --git a/cmd/cli/service_windows.go b/cmd/cli/service_windows.go
index fddb0ef..b12982c 100644
--- a/cmd/cli/service_windows.go
+++ b/cmd/cli/service_windows.go
@@ -160,6 +160,7 @@ func hasLocalDnsServerRunning() bool {
 	if e != nil {
 		return false
 	}
+	defer windows.CloseHandle(h)
 	p := windows.ProcessEntry32{Size: processEntrySize}
 	for {
 		e := windows.Process32Next(h, &p)