- use the same markup for the deprecation as for that of
  file.xreadlines()
diff --git a/Doc/lib/libxreadlines.tex b/Doc/lib/libxreadlines.tex
index f2fbe24..f74040d 100644
--- a/Doc/lib/libxreadlines.tex
+++ b/Doc/lib/libxreadlines.tex
@@ -6,7 +6,7 @@
 
 \versionadded{2.1}
 
-\deprecated{2.3}{Use \code{for line in file} instead.}
+\deprecated{2.3}{Use \samp{for \var{line} in \var{file}} instead.}
 
 This module defines a new object type which can efficiently iterate
 over the lines of a file.  An xreadlines object is a sequence type