diff --git a/wiki/manifests/init.pp b/wiki/manifests/init.pp
index 67bee7e..c8bd5f8 100644
--- a/wiki/manifests/init.pp
+++ b/wiki/manifests/init.pp
@@ -110,6 +110,7 @@ class wiki::collab::base {
 
     include cairo::python
     include igraph::python
+    include graphviz::python
     include ldap::client::python
 
     include apache::mod::authnz_ldap