1 files changed, 1 insertions, 1 deletions

diff --git a/src/MainWindow.h b/src/MainWindow.h

index 1aadbf4d..59f29d50 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -62,7 +62,7 @@ class MainWindow : public QMainWindow
         Q_OBJECT
 
 public:
-        explicit MainWindow(QWidget *parent = 0);
+        explicit MainWindow(QWidget *parent = nullptr);
 
         static MainWindow *instance() { return instance_; };
         void saveCurrentWindowSize();