diff --git a/Doc/libsgmllib.tex b/Doc/libsgmllib.tex
index 78060ec..f93095b 100644
--- a/Doc/libsgmllib.tex
+++ b/Doc/libsgmllib.tex
@@ -140,7 +140,7 @@
 correspond to any open element.
 \end{funcdesc}
 
-\begin{funcdesc}{unknown_starttag}{tag\, attributes}
+\begin{funcdesc}{unknown_starttag}{tag, attributes}
 This method is called to process an unknown start tag.  It is intended
 to be overridden by a derived class; the base class implementation
 does nothing.