@@ -56,7 +56,7 @@ func GetOSVersion() OSVersion {

 func IsWindowsClient() bool {

 	osviex := &osVersionInfoEx{OSVersionInfoSize: 284}

 	r1, _, err := procGetVersionExW.Call(uintptr(unsafe.Pointer(osviex)))

-	if r1 == 0 {

+	if err != nil || r1 == 0 {

 		logrus.Warnf("GetVersionExW failed - assuming server SKU: %v", err)

 		return false

 	}