diff --git a/Hikvision.go b/Hikvision.go
index a7a0c7f..7fba232 100644
--- a/Hikvision.go
+++ b/Hikvision.go
@@ -38,6 +38,8 @@ func Init() {
 
 	purego.RegisterLibFunc(&newHIKBallCamera, libc, "NewHIKBallCamera")
 	purego.RegisterLibFunc(&initBallCamera, libc, "InitBallCamera")
+	purego.RegisterLibFunc(&ballCameraLogout, libc, "InitBallCamera")
+
 	purego.RegisterLibFunc(&ptzTo, libc, "PtzGotoPut")
 	purego.RegisterLibFunc(&ptzGet, libc, "PtzGet")
 	purego.RegisterLibFunc(&stopBus, libc, "StopBus")