diff --git a/doc/user/prepare.tex b/doc/user/prepare.tex
index 3cb5afd182..b2adb4d64b 100644
--- a/doc/user/prepare.tex
+++ b/doc/user/prepare.tex
@@ -475,7 +475,7 @@ volume will be increased after solvation.
 
 \begin{verbatim}
 read (rst | pdb) <string filename>
-write (rst | [solute] pdb) <string filename>
+write (rst | [solute] pdb | xyz) <string filename>
 \end{verbatim}
 
 These directives read and write the file \verb+filename+ in the specified