diff --git a/Doc/lib/libsunaudio.tex b/Doc/lib/libsunaudio.tex
index 4529cef..db0368b 100644
--- a/Doc/lib/libsunaudio.tex
+++ b/Doc/lib/libsunaudio.tex
@@ -50,7 +50,7 @@
 \begin{methoddesc}[audio device]{fileno}{}
 Returns the file descriptor associated with the device.  This can be
 used to set up \code{SIGPOLL} notification, as described below.
-\end{methoddocs}
+\end{methoddesc}
 
 \begin{methoddesc}[audio device]{drain}{}
 This method waits until all pending output is processed and then returns.