diff --git a/doc/conf.py b/doc/conf.py
index ed454d567..c0d39ead3 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -369,7 +369,6 @@
                     'Brecht Machiels', False)]
 
 rinoh_template = 'rinohtype.rtt'
-rinoh_paper_size = None  # determined by the template configuration
 rinoh_logo = '_static/rinohtype_logo.pdf'
 
 # -- Extension interface -------------------------------------------------------