diff --git a/Doc/lib/liblogging.tex b/Doc/lib/liblogging.tex
index eeacd5e..df1b07c 100644
--- a/Doc/lib/liblogging.tex
+++ b/Doc/lib/liblogging.tex
@@ -897,7 +897,7 @@
 \end{methoddesc}
 
 
-\begin{classdesc}PlaceHolder{logger}
+\begin{classdesc}{PlaceHolder}{logger}
 
 \class{PlaceHolder} instances are used in the \class{Manager} logger
 hierarchy to take the place of nodes for which no loggers have been defined
@@ -913,7 +913,7 @@
 
 \end{methoddesc}
 
-\begin{classdesc}RootLogger{level}
+\begin{classdesc}{RootLogger}{level}
 
 A root logger is not that different to any other logger, except that it must
 have a logging \var{level} and there is only one instance of it in the