Fix typo.
diff --git a/Doc/lib/libimaplib.tex b/Doc/lib/libimaplib.tex
index 7c2fa45..0560113 100644
--- a/Doc/lib/libimaplib.tex
+++ b/Doc/lib/libimaplib.tex
@@ -247,7 +247,7 @@
   Returned data are tuples of message part envelope and data.
 \end{methoddesc}
 
-\begin{methoddes}{myrights}{mailbox}
+\begin{methoddesc}{myrights}{mailbox}
   Show my ACLs for a mailbox (i.e. the rights that I have on mailbox).
 \versionadded{2.4}
 \end{methoddesc}