diff --git a/libsrc/leddevice/LedDeviceWrapper.cpp b/libsrc/leddevice/LedDeviceWrapper.cpp
index f9eebc01..ee6a1d54 100644
--- a/libsrc/leddevice/LedDeviceWrapper.cpp
+++ b/libsrc/leddevice/LedDeviceWrapper.cpp
@@ -146,4 +146,5 @@ void LedDeviceWrapper::stopDeviceThread()
 	QThread* oldThread = _ledDevice->thread();
 	delete _ledDevice; // fast desctruction
 	oldThread->quit(); // non blocking
+	oldThread->wait();
 }