[Patch #476612] Change docs to describe PEP247 interface
diff --git a/Doc/lib/libsha.tex b/Doc/lib/libsha.tex
index ca1aac4..d9d7bf2 100644
--- a/Doc/lib/libsha.tex
+++ b/Doc/lib/libsha.tex
@@ -31,7 +31,7 @@
   hashed.
 \end{datadesc}
 
-\begin{datadesc}{digestsize}
+\begin{datadesc}{digest_size}
   The size of the resulting digest in bytes.  This is always
   \code{20}.
 \end{datadesc}