diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index 324343cde2..85221b5331 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -694,7 +694,7 @@ PLIST_DIRS=     lib/X11/oneko</programlisting>
 
 post-extract:
 	@${FIND} -E ${WRKDIR} -type f -iregex ".*\.(c|cpp|h|txt)" -print0 | \
-		${XARGS} -0 ${REINPLACE_CMD} -e 's/[[:cntrl:]]*$$//' '{}' \;</programlisting>
+		${XARGS} -0 ${REINPLACE_CMD} -e 's/[[:cntrl:]]*$$//'</programlisting>
 
 	<para>Of course, if you need to process each and every file,
 	  <option>-iregex</option> above can be omitted.  Be aware that this