1 files changed, 1 insertions, 1 deletions

diff --git a/rbutil/rbutilqt/base/ttsexes.h b/rbutil/rbutilqt/base/ttsexes.h
index 03252cdc92..5707c827fe 100644
--- a/rbutil/rbutilqt/base/ttsexes.h
+++ b/rbutil/rbutilqt/base/ttsexes.h
@@ -34,7 +34,7 @@ class TTSExes : public TTSBase
 
     Q_OBJECT
     public:
-        TTSExes(QObject* parent=NULL);
+        TTSExes(QObject* parent=nullptr);
         TTSStatus voice(QString text, QString wavfile, QString *errStr);
         bool start(QString *errStr);
         bool stop() {return true;}