diff --git a/doc/source/conf.py b/doc/source/conf.py
index de2d5c2..2832a16 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -89,6 +89,7 @@ pygments_style = 'sphinx'
 # If true, `todo` and `todoList` produce output, else they produce nothing.
 todo_include_todos = True
 
+default_role = 'any'
 
 # -- Options for HTML output ----------------------------------------------