diff --git a/cockatrice/src/utility/sequence_edit.h b/cockatrice/src/utility/sequence_edit.h
index ddb7847d6..e2ce6845e 100644
--- a/cockatrice/src/utility/sequence_edit.h
+++ b/cockatrice/src/utility/sequence_edit.h
@@ -11,7 +11,7 @@ class SequenceEdit : public QWidget
 {
     Q_OBJECT
 public:
-    SequenceEdit(const QString &_shortcutName, QWidget *parent = nullptr);
+    explicit SequenceEdit(const QString &_shortcutName, QWidget *parent = nullptr);
     QString getSequence();
     void setShortcutName(const QString &_shortcutName);
     void refreshShortcut();
@@ -23,7 +23,7 @@ private slots:
     void restoreDefault();
 
 protected:
-    bool eventFilter(QObject *, QEvent *event);
+    bool eventFilter(QObject *, QEvent *event) override;
 
 private:
     QString shortcutName;