diff --git a/doc/Doxyfiles/doxyfile.cmake b/doc/Doxyfiles/doxyfile.cmake
index 07f08b056..d3d17271c 100644
--- a/doc/Doxyfiles/doxyfile.cmake
+++ b/doc/Doxyfiles/doxyfile.cmake
@@ -84,21 +84,22 @@ WARN_LOGFILE           =
 # configuration options related to the input files
 #---------------------------------------------------------------------------
 INPUT                  = "${OpenSceneGraph_SOURCE_DIR}/include/osg" \
+                         "${OpenSceneGraph_SOURCE_DIR}/include/osgAnimation" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgDB" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgFX" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgGA" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgManipulator" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgParticle" \
+                         "${OpenSceneGraph_SOURCE_DIR}/include/osgQt" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgShadow" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgSim" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgTerrain" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgText" \
+                         "${OpenSceneGraph_SOURCE_DIR}/include/osgUI" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgUtil" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgViewer" \
                          "${OpenSceneGraph_SOURCE_DIR}/include/osgVolume" \
-                         "${OpenSceneGraph_SOURCE_DIR}/include/osgWidget" \
-                         "${OpenSceneGraph_SOURCE_DIR}/include/osgQt" \
-                         "${OpenSceneGraph_SOURCE_DIR}/include/osgAnimation"
+                         "${OpenSceneGraph_SOURCE_DIR}/include/osgWidget"
 INPUT_ENCODING         = UTF-8
 FILE_PATTERNS          = *include* \
                          *.cpp