diff --git a/doc/pyOpenSSL.tex b/doc/pyOpenSSL.tex
index 7b9bdbb..564e6bb 100644
--- a/doc/pyOpenSSL.tex
+++ b/doc/pyOpenSSL.tex
@@ -299,7 +299,7 @@
 \var{certificate} is a \code{X509} instance corresponding to the private key
 which generated the signature.  \var{signature} is a \var{str} instance giving
 the signature itself.  \var{data} is a \var{str} instance giving the data to
-which the signature applies.  \var{digest| is a \var{str} instance naming the
+which the signature applies.  \var{digest} is a \var{str} instance naming the
 message digest type of the signature, for example \code{``sha1''}.
 \end{funcdesc}