diff --git a/include/osgManipulator/TrackballDragger b/include/osgManipulator/TrackballDragger
index a8613d236..5188b5628 100644
--- a/include/osgManipulator/TrackballDragger
+++ b/include/osgManipulator/TrackballDragger
@@ -19,6 +19,7 @@
 #include <osgManipulator/RotateSphereDragger>
 #include <osg/ShapeDrawable>
 #include <osg/Geometry>
+#include <osg/Geode>
 #include <osg/LineWidth>
 
 namespace osgManipulator {