diff --git a/include/lockSet.h b/include/lockSet.h
index d535022..00acc13 100644
--- a/include/lockSet.h
+++ b/include/lockSet.h
@@ -86,7 +86,7 @@ public:
 	 * @return true if all locks were acquired, false otherwise
 	 */
 	bool tryAcquireOrBackOff(
-		LockerAndInvokerBase &lockvoker, Qutex *firstFailedQutex = nullptr);
+		LockerAndInvokerBase &lockvoker, Qutex **firstFailedQutex = nullptr);
 	void unregisterFromQutexQueues();
 
 	// @brief Release all locks
diff --git a/smocore/lockSet.cpp b/smocore/lockSet.cpp
index 0cb3fba..d180fce 100644
--- a/smocore/lockSet.cpp
+++ b/smocore/lockSet.cpp
@@ -48,7 +48,7 @@ void LockSet<OriginalCbFnT>::registerInQutexQueues(
 
 template <class OriginalCbFnT>
 bool LockSet<OriginalCbFnT>::tryAcquireOrBackOff(
-	LockerAndInvokerBase &lockvoker, Qutex *firstFailedQutex
+	LockerAndInvokerBase &lockvoker, Qutex **firstFailedQutex
 	)
 {
 	if (!registeredInQutexQueues)