1 files changed, 1 insertions, 1 deletions
diff --git a/src/designer/src/designer/doc/snippets/autoconnection/imagedialog.h b/src/designer/src/designer/doc/snippets/autoconnection/imagedialog.h
index ca1afb77a..64d6b4e88 100644
--- a/src/designer/src/designer/doc/snippets/autoconnection/imagedialog.h
+++ b/src/designer/src/designer/doc/snippets/autoconnection/imagedialog.h
@@ -12,7 +12,7 @@ class ImageDialog : public QDialog, private Ui::ImageDialog
     Q_OBJECT
 
 public:
-    ImageDialog(QWidget *parent = 0);
+    explicit ImageDialog(QWidget *parent = nullptr);
 
 private slots:
     void on_okButton_clicked();