diff --git a/widgets/glWidget/QtBaseViewer.cc b/widgets/glWidget/QtBaseViewer.cc
index be188028a52bbb67a8a53cfa507abfa430d303cd..0e71aed2b64d8324c079ca1c5e4105ad75599d77 100644
--- a/widgets/glWidget/QtBaseViewer.cc
+++ b/widgets/glWidget/QtBaseViewer.cc
@@ -1950,7 +1950,7 @@ void glViewer::handleNormalNavigation( QMouseEvent* _event ) {
                             ACG::MULT_FROM_LEFT);
                 }
                 */
-                ACG::Vec3d center(glWidth()/2.0, glHeight()/2.0);
+                ACG::Vec3d center(glWidth()/2.0, glHeight()/2.0, 0);
                 rotate(constrainedRotationAxis_, angle, unproject(center));
 
                 lastRotationAxis_ = constrainedRotationAxis_;