diff --git a/samples/cliclient/reader.h b/samples/cliclient/reader.h
index ab5dc772c..129453b4f 100644
--- a/samples/cliclient/reader.h
+++ b/samples/cliclient/reader.h
@@ -36,7 +36,7 @@ namespace BlackSample
 
     protected:
         //! Run reader in background
-        void run();
+        virtual void run() override;
 
     signals:
         //! User command
diff --git a/samples/weatherdata/reader.h b/samples/weatherdata/reader.h
index afa38657d..c5b8956ed 100644
--- a/samples/weatherdata/reader.h
+++ b/samples/weatherdata/reader.h
@@ -31,7 +31,7 @@ public:
 
 protected:
     //! \copydoc QThread::run
-    void run();
+    virtual void run() override;
 
 signals:
     //! User is asking for weather data
diff --git a/src/blackcore/context/contextapplication.h b/src/blackcore/context/contextapplication.h
index 175a4d065..776ecfe30 100644
--- a/src/blackcore/context/contextapplication.h
+++ b/src/blackcore/context/contextapplication.h
@@ -82,7 +82,7 @@ namespace BlackCore
             }
 
             //! \copydoc CContext::getPathAndContextId()
-            virtual QString getPathAndContextId() const { return this->buildPathAndContextId(ObjectPath()); }
+            virtual QString getPathAndContextId() const override { return this->buildPathAndContextId(ObjectPath()); }
 
             //! Factory method
             static IContextApplication *create(CCoreFacade *parent, CCoreFacadeConfig::ContextMode mode, BlackMisc::CDBusServer *server, QDBusConnection &conn);
diff --git a/src/blackcore/context/contextaudio.h b/src/blackcore/context/contextaudio.h
index d88dc9c5f..b0c277b61 100644
--- a/src/blackcore/context/contextaudio.h
+++ b/src/blackcore/context/contextaudio.h
@@ -77,7 +77,7 @@ namespace BlackCore
             static const QPixmap &pttHotkeyIcon();
 
             //! \copydoc CContext::getPathAndContextId()
-            virtual QString getPathAndContextId() const { return this->buildPathAndContextId(ObjectPath()); }
+            virtual QString getPathAndContextId() const override { return this->buildPathAndContextId(ObjectPath()); }
 
             //! Factory method
             static IContextAudio *create(CCoreFacade *runtime, CCoreFacadeConfig::ContextMode mode, BlackMisc::CDBusServer *server, QDBusConnection &conn);
diff --git a/src/blackcore/context/contextnetwork.h b/src/blackcore/context/contextnetwork.h
index 9e2f4a4a3..1c5da184b 100644
--- a/src/blackcore/context/contextnetwork.h
+++ b/src/blackcore/context/contextnetwork.h
@@ -89,7 +89,7 @@ namespace BlackCore
             }
 
             //! \copydoc CContext::getPathAndContextId()
-            virtual QString getPathAndContextId() const { return this->buildPathAndContextId(ObjectPath()); }
+            virtual QString getPathAndContextId() const override { return this->buildPathAndContextId(ObjectPath()); }
 
             //! Factory method
             static IContextNetwork *create(CCoreFacade *parent, CCoreFacadeConfig::ContextMode mode, BlackMisc::CDBusServer *server, QDBusConnection &connection);
diff --git a/src/blackcore/context/contextownaircraft.h b/src/blackcore/context/contextownaircraft.h
index c2da03763..ec1f712a9 100644
--- a/src/blackcore/context/contextownaircraft.h
+++ b/src/blackcore/context/contextownaircraft.h
@@ -78,7 +78,7 @@ namespace BlackCore
             }
 
             //! \copydoc CContext::getPathAndContextId()
-            virtual QString getPathAndContextId() const { return this->buildPathAndContextId(ObjectPath()); }
+            virtual QString getPathAndContextId() const override { return this->buildPathAndContextId(ObjectPath()); }
 
             //! Factory method
             static IContextOwnAircraft *create(CCoreFacade *parent, CCoreFacadeConfig::ContextMode mode, BlackMisc::CDBusServer *server, QDBusConnection &conn);
diff --git a/src/blackcore/context/contextsimulator.h b/src/blackcore/context/contextsimulator.h
index a1e636ee7..cefe8d089 100644
--- a/src/blackcore/context/contextsimulator.h
+++ b/src/blackcore/context/contextsimulator.h
@@ -74,7 +74,7 @@ namespace BlackCore
             static const BlackMisc::PhysicalQuantities::CTime &HighlightTime();
 
             //! \copydoc CContext::getPathAndContextId()
-            virtual QString getPathAndContextId() const { return this->buildPathAndContextId(ObjectPath()); }
+            virtual QString getPathAndContextId() const override { return this->buildPathAndContextId(ObjectPath()); }
 
             //! Factory method
             static IContextSimulator *create(CCoreFacade *parent, CCoreFacadeConfig::ContextMode mode, BlackMisc::CDBusServer *server, QDBusConnection &conn);