--- /etc/init.d/wu-ftpd.ori	2009-03-11 12:46:38.000000000 +0100
+++ /etc/init.d/wu-ftpd	2009-03-11 12:46:52.000000000 +0100
@@ -39,7 +39,7 @@
 fi
 
 # check that the FTP service isn't already enabled in inetd
-if [ -f /etc/inetd.conf ] && [ -n `which inetd` ] && egrep '^ftp[[:space:]][[:space:]]*' /etc/inetd.conf >/dev/null; then
+if [ -f /etc/inetd.conf ] && [ -n "`which inetd`" ] && egrep '^ftp[[:space:]][[:space:]]*' /etc/inetd.conf >/dev/null; then
     run_wu=0
 fi