diff --git a/agents/archivemailagent/job/archivejob.h b/agents/archivemailagent/job/archivejob.h
index cfbb9326b..f6cdf80f0 100644
--- a/agents/archivemailagent/job/archivejob.h
+++ b/agents/archivemailagent/job/archivejob.h
@@ -43,7 +43,7 @@ public:
     {
     }
 
-    ~ScheduledArchiveTask()
+    ~ScheduledArchiveTask() override
     = default;
 
     MailCommon::ScheduledJob *run() override;
diff --git a/ktnef/src/qwmf.cpp b/ktnef/src/qwmf.cpp
index 98aca0bb2..7f4b5fe41 100644
--- a/ktnef/src/qwmf.cpp
+++ b/ktnef/src/qwmf.cpp
@@ -55,7 +55,7 @@ class WinObjBrushHandle : public WinObjHandle
 public:
     void apply(QPainter &p) override;
     QBrush brush;
-    virtual ~WinObjBrushHandle()
+    ~WinObjBrushHandle() override
     = default;
 };
 
@@ -64,7 +64,7 @@ class WinObjPenHandle : public WinObjHandle
 public:
     void apply(QPainter &p) override;
     QPen pen;
-    virtual ~WinObjPenHandle()
+    ~WinObjPenHandle() override
     = default;
 };
 
@@ -74,7 +74,7 @@ public:
     void apply(QPainter &p) override;
     QBrush brush;
     QImage image;
-    virtual ~WinObjPatternBrushHandle()
+    ~WinObjPatternBrushHandle() override
     = default;
 };
 
@@ -84,7 +84,7 @@ public:
     void apply(QPainter &p) override;
     QFont font;
     int rotation;
-    virtual ~WinObjFontHandle()
+    ~WinObjFontHandle() override
     = default;
 };
 
diff --git a/src/identity/identityeditvcarddialog.h b/src/identity/identityeditvcarddialog.h
index 1c02ff233..7b05fdf5f 100644
--- a/src/identity/identityeditvcarddialog.h
+++ b/src/identity/identityeditvcarddialog.h
@@ -18,7 +18,7 @@ class IdentityEditVcardDialog : public QDialog
     Q_OBJECT
 public:
     explicit IdentityEditVcardDialog(const QString &fileName, QWidget *parent = nullptr);
-    ~IdentityEditVcardDialog();
+    ~IdentityEditVcardDialog() override;
     /**
     * @brief loadVcard load vcard in a contact editor
     * @param vcardFileName
diff --git a/src/kmcommands.h b/src/kmcommands.h
index f4ecc50d1..0d0e0c71e 100644
--- a/src/kmcommands.h
+++ b/src/kmcommands.h
@@ -237,7 +237,7 @@ class KMAILTESTS_TESTS_EXPORT KMEditItemCommand : public KMCommand
 
 public:
     explicit KMEditItemCommand(QWidget *parent, const Akonadi::Item &msg, bool deleteFromSource = true);
-    ~KMEditItemCommand();
+    ~KMEditItemCommand() override;
 private Q_SLOTS:
     void slotDeleteItem(KJob *job);
 private:
diff --git a/src/kontactplugin/kmail/kmail_plugin.h b/src/kontactplugin/kmail/kmail_plugin.h
index e33fe40bc..c522e9cb0 100644
--- a/src/kontactplugin/kmail/kmail_plugin.h
+++ b/src/kontactplugin/kmail/kmail_plugin.h
@@ -38,7 +38,7 @@ class KMailPlugin : public KontactInterface::Plugin
 
 public:
     KMailPlugin(KontactInterface::Core *core, const QVariantList &);
-    ~KMailPlugin();
+    ~KMailPlugin() override;
 
     Q_REQUIRED_RESULT bool isRunningStandalone() const override;
     KontactInterface::Summary *createSummaryWidget(QWidget *parent) override;
diff --git a/src/widgets/collectionpane.h b/src/widgets/collectionpane.h
index 6d164a68e..769409e57 100644
--- a/src/widgets/collectionpane.h
+++ b/src/widgets/collectionpane.h
@@ -15,7 +15,7 @@ class CollectionPane : public MessageList::Pane
     Q_OBJECT
 public:
     explicit CollectionPane(bool restoreSession, QAbstractItemModel *model, QItemSelectionModel *selectionModel, QWidget *parent = nullptr);
-    ~CollectionPane();
+    ~CollectionPane() override;
 
     MessageList::StorageModel *createStorageModel(QAbstractItemModel *model, QItemSelectionModel *selectionModel, QObject *parent) override;
     void writeConfig(bool restoreSession) override;
@@ -29,7 +29,7 @@ public:
     * Create a StorageModel wrapping the specified folder.
     */
     explicit CollectionStorageModel(QAbstractItemModel *model, QItemSelectionModel *selectionModel, QObject *parent = nullptr);
-    ~CollectionStorageModel();
+    ~CollectionStorageModel() override;
     Q_REQUIRED_RESULT bool isOutBoundFolder(const Akonadi::Collection &c) const override;
 };