diff --git a/doc/pyOpenSSL.tex b/doc/pyOpenSSL.tex
index 9f472b9..4dbf19c 100644
--- a/doc/pyOpenSSL.tex
+++ b/doc/pyOpenSSL.tex
@@ -632,6 +632,16 @@
 file can then be used with \function{load_file} to seed the PRNG again.
 \end{funcdesc}
 
+\begin{excdesc}{Error}
+If the current RAND method supports any errors, this is raised when needed.  
+The default method does not raise this when the entropy pool is depleted.
+
+Whenever this exception is raised directly, it has a list of error messages
+from the OpenSSL error queue, where each item is a tuple \code{(\var{lib},
+\var{function}, \var{reason})}. Here \var{lib}, \var{function} and \var{reason}
+are all strings, describing where and what the problem is. See \manpage{err}{3}
+for more information.
+\end{excdesc}
 
 
 % % % SSL module