diff --git a/smocore/deviceManager/deviceManager.cpp b/smocore/deviceManager/deviceManager.cpp
index 8806702..a55d19f 100644
--- a/smocore/deviceManager/deviceManager.cpp
+++ b/smocore/deviceManager/deviceManager.cpp
@@ -486,7 +486,6 @@ void DeviceManager::attachSenseDeviceReq(
 	auto request = std::make_shared<AttachSenseDeviceReq>(
 		spec, caller, cb,
 		LockSet<attachSenseDeviceReqCbFn>::Set{
-			std::ref(DeviceManager::getInstance().qutex),
 			std::ref(lib.qutex)
 		});
 
@@ -521,7 +520,6 @@ void DeviceManager::detachSenseDeviceReq(
 	auto request = std::make_shared<DetachSenseDeviceReq>(
 		spec, caller, cb,
 		LockSet<detachSenseDeviceReqCbFn>::Set{
-			std::ref(DeviceManager::getInstance().qutex),
 			std::ref(lib.qutex)
 		});