diff --git a/doc/src/Build_package.rst b/doc/src/Build_package.rst
index 63ccac534d..b70a1ca4d1 100644
--- a/doc/src/Build_package.rst
+++ b/doc/src/Build_package.rst
@@ -62,6 +62,7 @@ packages:
    * :ref:`POEMS <poems>`
    * :ref:`PYTHON <python>`
    * :ref:`QMMM <qmmm>`
+   * :ref:`RHEO <rheo>`
    * :ref:`SCAFACOS <scafacos>`
    * :ref:`VORONOI <voronoi>`
    * :ref:`VTK <vtk>`