1 files changed, 1 insertions, 1 deletions
diff --git a/viewer.h b/viewer.h
index 196a2dd..e5a8a02 100644
--- a/viewer.h
+++ b/viewer.h
@@ -7,7 +7,7 @@ class QLabel;
 
 class Viewer : public QWidget {
     public:
-        Viewer(QWidget *parent = nullptr, Qt::WindowFlags f = nullptr);
+        Viewer(QWidget *parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
         void setFile(const QString &file, bool allFiles = true);
         void setFiles(const QStringList &files);
         void preview(const QString &file);