diff --git a/doc/doxygen/Doxyfile b/doc/doxygen/Doxyfile
index 68f32b46f78e3f6e8be8a317d54b3176e712c788..c8cf271171e2ed21484206de35a988eb4e52b43d 100644
--- a/doc/doxygen/Doxyfile
+++ b/doc/doxygen/Doxyfile
@@ -464,7 +464,8 @@ WARN_LOGFILE           =
 
 INPUT                  = mainpage \
                          modules \
-                         ../../ag-common
+                         ../../ag-common \
+			 ../../ag-common/cg-common
 
 # This tag can be used to specify the character encoding of the source files that 
 # doxygen parses. Internally doxygen uses the UTF-8 encoding, which is also the default