diff --git a/Isosurfacing_3/doc/Isosurfacing_3/Doxyfile.in b/Isosurfacing_3/doc/Isosurfacing_3/Doxyfile.in
index bb5c666855d..6f8ddde9345 100644
--- a/Isosurfacing_3/doc/Isosurfacing_3/Doxyfile.in
+++ b/Isosurfacing_3/doc/Isosurfacing_3/Doxyfile.in
@@ -2,7 +2,7 @@
 
 PROJECT_NAME = "CGAL ${CGAL_DOC_VERSION} - 3D Isosurfacing"
 
-HTML_EXTRA_FILES           =  ${CGAL_PACKAGE_DOC_DIR}/fig/bunny_offset.gif \
+HTML_EXTRA_FILES           =  ${CGAL_PACKAGE_DOC_DIR}/fig/tractor_offset.gif \
                               ${CGAL_PACKAGE_DOC_DIR}/fig/mc_cases.png \
                               ${CGAL_PACKAGE_DOC_DIR}/fig/iwp_dc.png \
                               ${CGAL_PACKAGE_DOC_DIR}/fig/cube_mc_dc.png \