diff --git a/doc/sgml/oper-guide/charybdis-oper-guide.sgml b/doc/sgml/oper-guide/charybdis-oper-guide.sgml
index 408978d3e..2c9c1a9fd 100644
--- a/doc/sgml/oper-guide/charybdis-oper-guide.sgml
+++ b/doc/sgml/oper-guide/charybdis-oper-guide.sgml
@@ -15,7 +15,10 @@