diff --git a/include/group.hpp b/include/group.hpp
index b10402c6..5ce331a8 100644
--- a/include/group.hpp
+++ b/include/group.hpp
@@ -12,7 +12,7 @@ namespace waybar {
 class Group : public AModule {
  public:
   Group(const std::string &, const std::string &, const Json::Value &, bool);
-  virtual ~Group() = default;
+  ~Group() override = default;
   auto update() -> void override;
   operator Gtk::Widget &() override;
 
diff --git a/src/group.cpp b/src/group.cpp
index deeecc75..2660868a 100644
--- a/src/group.cpp
+++ b/src/group.cpp
@@ -9,7 +9,7 @@
 
 namespace waybar {
 
-const Gtk::RevealerTransitionType getPreferredTransitionType(bool is_vertical) {
+Gtk::RevealerTransitionType getPreferredTransitionType(bool is_vertical) {
   /* The transition direction of a drawer is not actually determined by the transition type,
    * but rather by the order of 'box' and 'revealer_box':
    *   'REVEALER_TRANSITION_TYPE_SLIDE_LEFT' and 'REVEALER_TRANSITION_TYPE_SLIDE_RIGHT'
@@ -112,7 +112,7 @@ bool Group::handleToggle(GdkEventButton* const& e) {
   if (!click_to_reveal || e->button != 1) {
     return false;
   }
-  if (box.get_state_flags() & Gtk::StateFlags::STATE_FLAG_PRELIGHT) {
+  if ((box.get_state_flags() & Gtk::StateFlags::STATE_FLAG_PRELIGHT) != 0U) {
     hide_group();
   } else {
     show_group();