1 files changed, 4 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx b/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx
index 98ef3f04af0f..a01b402d6038 100644
--- a/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx
+++ b/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx
@@ -40,6 +40,8 @@ namespace sd { namespace slidesorter { namespace view {
 class ILayerInvalidator
 {
 public:
+    virtual ~ILayerInvalidator() {}
+
     virtual void Invalidate (const Rectangle& rInvalidationBox) = 0;
 };
 typedef ::boost::shared_ptr<ILayerInvalidator> SharedILayerInvalidator;
@@ -47,6 +49,8 @@ typedef ::boost::shared_ptr<ILayerInvalidator> SharedILayerInvalidator;
 class ILayerPainter
 {
 public:
+    virtual ~ILayerPainter() {}
+
     virtual void SetLayerInvalidator (
         const SharedILayerInvalidator& rpInvalidator) = 0;
     virtual void Paint (