diff --git a/Doc/lib/libbinascii.tex b/Doc/lib/libbinascii.tex
index 02b247c991d..669d2bbb0a6 100644
--- a/Doc/lib/libbinascii.tex
+++ b/Doc/lib/libbinascii.tex
@@ -26,7 +26,7 @@ argument is empty in which case the output filename is read from the
 binhex file.
 \end{funcdesc}
 
-\subsection{notes}
+\subsection{Notes}
 There is an alternative, more powerful interface to the coder and
 decoder, see the source for details.
 
diff --git a/Doc/libbinascii.tex b/Doc/libbinascii.tex
index 02b247c991d..669d2bbb0a6 100644
--- a/Doc/libbinascii.tex
+++ b/Doc/libbinascii.tex
@@ -26,7 +26,7 @@ argument is empty in which case the output filename is read from the
 binhex file.
 \end{funcdesc}
 
-\subsection{notes}
+\subsection{Notes}
 There is an alternative, more powerful interface to the coder and
 decoder, see the source for details.