diff --git a/doc/doxygen/Doxylocal b/doc/doxygen/Doxylocal
index 38535c9d65583acfb4dc86737d6d2b0a055f078c..02f2e26cd2e793b92c59ce2d182c0d70b48240c5 100644
--- a/doc/doxygen/Doxylocal
+++ b/doc/doxygen/Doxylocal
@@ -17,7 +17,7 @@ EXAMPLE_PATH          += @srcdir@/extradoc
 
 IMAGE_PATH             = @srcdir@/images
 
-EXTRA_PACKAGES        += amsmath,amssymb
+EXTRA_PACKAGES        += amsmath,amssymb,units
 
 # enable client side searching
 SEARCHENGINE           = YES
diff --git a/doc/doxygen/mainpage.txt b/doc/doxygen/mainpage.txt
index 3286cbca1ebb8807799dc4bb17f2ee39089542e6..26c7d950c3f76b45cb84c1501b611b40a4dc3f7c 100644
--- a/doc/doxygen/mainpage.txt
+++ b/doc/doxygen/mainpage.txt
@@ -9,12 +9,16 @@
 \section intro Introduction
 
 Welcome to the DuMuX documentation pages. This documentation has been
-generated using Doxygen, a free source code documentation system for
+generated using <a href="http://www.doxygen.org/index.html">Doxygen</a>, a free source code documentation system for
 documenting C/C++ code.
 
 \section mods Modules
 
-The best way to start is from the page Modules which gives
+The best way to start is from the page <a href="modules.html">Modules</a> which gives
 you access to the documentation by category.
 
+\section params Parameters
+
+An overview of all availabe parameters is given in \ref parameterlist.txt.
+
 */