diff --git a/Sources/Tools/plNetLog/ChunkBuffer.h b/Sources/Tools/plNetLog/ChunkBuffer.h
index 13ed26cb46..06eae0266a 100644
--- a/Sources/Tools/plNetLog/ChunkBuffer.h
+++ b/Sources/Tools/plNetLog/ChunkBuffer.h
@@ -51,9 +51,9 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include <QMutex>
 
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
-#define Q_MUTEX_LOCKER_TYPE QMutexLocker<QMutex>
+using Q_MUTEX_LOCKER_TYPE = QMutexLocker<QMutex>;
 #else
-#define Q_MUTEX_LOCKER_TYPE QMutexLocker
+using Q_MUTEX_LOCKER_TYPE = QMutexLocker;
 #endif
 
 class ChunkBuffer