diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
index 75d4182..7856bb4 100644
--- a/Doc/lib/libos.tex
+++ b/Doc/lib/libos.tex
@@ -105,7 +105,7 @@
 exception if the leaf directory could not be successfully removed.
 \end{funcdesc}
 
-\begin{funcdesc}{renames}{path}
+\begin{funcdesc}{renames}{old, new}
 \versionadded{1.5.2}
 Recursive directory or file renaming function.
 Works like \function{rename()}, except creation of any intermediate