diff --git a/avmedia/source/macavf/framegrabber.hxx b/avmedia/source/macavf/framegrabber.hxx
index b30a2b2a400f..4567690e0c75 100644
--- a/avmedia/source/macavf/framegrabber.hxx
+++ b/avmedia/source/macavf/framegrabber.hxx
@@ -33,7 +33,7 @@ class FrameGrabber : public ::cppu::WeakImplHelper< css::media::XFrameGrabber,
 public:
 
     explicit FrameGrabber( const css::uno::Reference< css::lang::XMultiServiceFactory >& );
-    virtual  ~FrameGrabber();
+    virtual  ~FrameGrabber() override;
 
     bool    create( const ::rtl::OUString& rURL );
     bool    create( AVAsset* pMovie );
diff --git a/avmedia/source/macavf/manager.hxx b/avmedia/source/macavf/manager.hxx
index fe1a4a39d440..6044df008d37 100644
--- a/avmedia/source/macavf/manager.hxx
+++ b/avmedia/source/macavf/manager.hxx
@@ -34,7 +34,7 @@ class Manager : public ::cppu::WeakImplHelper< css::media::XManager,
 public:
 
     Manager( const css::uno::Reference< css::lang::XMultiServiceFactory >& rxMgr );
-    virtual ~Manager();
+    virtual ~Manager() override;
 
     // XManager
     virtual css::uno::Reference< css::media::XPlayer > SAL_CALL createPlayer( const ::rtl::OUString& aURL ) throw (css::uno::RuntimeException) override;
diff --git a/avmedia/source/macavf/player.hxx b/avmedia/source/macavf/player.hxx
index d603ec14d131..86373b8c954b 100644
--- a/avmedia/source/macavf/player.hxx
+++ b/avmedia/source/macavf/player.hxx
@@ -35,7 +35,7 @@ class Player
 {
 public:
     explicit Player( const css::uno::Reference< css::lang::XMultiServiceFactory >& );
-    virtual  ~Player();
+    virtual  ~Player() override;
 
     bool create( const ::rtl::OUString& rURL );
     bool create( AVAsset* );
diff --git a/avmedia/source/macavf/window.hxx b/avmedia/source/macavf/window.hxx
index 2fe729035a94..fc9387e0bc2d 100644
--- a/avmedia/source/macavf/window.hxx
+++ b/avmedia/source/macavf/window.hxx
@@ -49,7 +49,7 @@ public:
                     Player& i_rPlayer,
                     NSView* i_pParentView
                     );
-    virtual ~Window();
+    virtual ~Window() override;
 
     void    processGraphEvent();
     void    updatePointer();