diff --git a/src/smartplaylists/smartplaylistquerywizardplugin.cpp b/src/smartplaylists/smartplaylistquerywizardplugin.cpp
index 1d3b6272b..feb4a5beb 100644
--- a/src/smartplaylists/smartplaylistquerywizardplugin.cpp
+++ b/src/smartplaylists/smartplaylistquerywizardplugin.cpp
@@ -43,7 +43,7 @@ class SmartPlaylistQueryWizardPlugin::SearchPage : public QWizardPage {
     ui_->setupUi(this);
   }
 
-  bool isComplete() const {
+  bool isComplete() const override {
     if (ui_->type->currentIndex() == 2)  // All songs
       return true;
 
@@ -67,9 +67,9 @@ class SmartPlaylistQueryWizardPlugin::SortPage : public QWizardPage {
   SortPage(SmartPlaylistQueryWizardPlugin *plugin, QWidget *parent, int next_id)
       : QWizardPage(parent), next_id_(next_id), plugin_(plugin) {}
 
-  void showEvent(QShowEvent*) { plugin_->UpdateSortPreview(); }
+  void showEvent(QShowEvent*) override { plugin_->UpdateSortPreview(); }
 
-  int nextId() const { return next_id_; }
+  int nextId() const override { return next_id_; }
   int next_id_;
 
   SmartPlaylistQueryWizardPlugin *plugin_;
diff --git a/src/smartplaylists/smartplaylistsearchtermwidget.cpp b/src/smartplaylists/smartplaylistsearchtermwidget.cpp
index 642884c04..8f9e02d9a 100644
--- a/src/smartplaylists/smartplaylistsearchtermwidget.cpp
+++ b/src/smartplaylists/smartplaylistsearchtermwidget.cpp
@@ -314,7 +314,7 @@ void SmartPlaylistSearchTermWidget::set_overlay_opacity(float opacity) {
 }
 
 float SmartPlaylistSearchTermWidget::overlay_opacity() const {
-  return overlay_ ? overlay_->opacity() : 0.0;
+  return overlay_ ? overlay_->opacity() : float(0.0);
 }
 
 void SmartPlaylistSearchTermWidget::SetTerm(const SmartPlaylistSearchTerm &term) {
diff --git a/src/smartplaylists/smartplaylistwizard.cpp b/src/smartplaylists/smartplaylistwizard.cpp
index 76cd4bfc8..067334154 100644
--- a/src/smartplaylists/smartplaylistwizard.cpp
+++ b/src/smartplaylists/smartplaylistwizard.cpp
@@ -38,7 +38,7 @@ class SmartPlaylistWizard::TypePage : public QWizardPage {
  public:
   explicit TypePage(QWidget *parent) : QWizardPage(parent), next_id_(-1) {}
 
-  int nextId() const { return next_id_; }
+  int nextId() const override { return next_id_; }
   int next_id_;
 };
 
@@ -51,8 +51,8 @@ class SmartPlaylistWizard::FinishPage : public QWizardPage {
 
   ~FinishPage() { delete ui_; }
 
-  int nextId() const { return -1; }
-  bool isComplete() const { return !ui_->name->text().isEmpty(); }
+  int nextId() const override { return -1; }
+  bool isComplete() const override { return !ui_->name->text().isEmpty(); }
 
   Ui_SmartPlaylistWizardFinishPage *ui_;