diff --git a/developer_manual/conf.py b/developer_manual/conf.py
index 944fe05be75..686c066416b 100644
--- a/developer_manual/conf.py
+++ b/developer_manual/conf.py
@@ -179,7 +179,7 @@
 #'pointsize': '10pt',
 
 # Additional stuff for the LaTeX preamble.
-'preamble': '\\extrafloats\{100\}',
+'preamble': '\extrafloats{100}\maxdeadcycles=500',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples