diff --git a/include/osgViewer/ViewerEventHandlers b/include/osgViewer/ViewerEventHandlers
index ea567702b..cd11b8133 100644
--- a/include/osgViewer/ViewerEventHandlers
+++ b/include/osgViewer/ViewerEventHandlers
@@ -524,7 +524,7 @@ protected:
     InteractiveImageHandler() {}
 
     InteractiveImageHandler(const InteractiveImageHandler&,const osg::CopyOp& = osg::CopyOp::SHALLOW_COPY):
-        osg::Object(), osgGA::GUIEventHandler(), osg::Drawable::CullCallback() {}
+        osg::Object(), osgGA::GUIEventHandler(), osg::Drawable::CullCallback(), _fullscreen(false) {}
 
     bool mousePosition(osgViewer::View* view, osg::NodeVisitor* nv, const osgGA::GUIEventAdapter& ea, int& x, int &y) const;
     bool computeIntersections(osgViewer::View* view, float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff) const;