diff --git a/backupmx_getusers.sh b/backupmx_getusers.sh
index cc1a207..ae3222c 100755
--- a/backupmx_getusers.sh
+++ b/backupmx_getusers.sh
@@ -13,14 +13,14 @@ MAIL_ADDR=$(mysql -sN -u root mailserver -e "SELECT email
 					     UNION
 					     SELECT source
 					     FROM virtual_aliases;" | sort | uniq)
+FILE_SUFFIX=$(cat /etc/mailname)
 
 # Makes a list of all mail addresses (be it real or aliases)
 for i in $MAIL_ADDR; do
 	echo -e "$i\tOK"
-done > $BACKUPMX_USER/relay_recipients_$(cat /etc/mailname)
+done > $BACKUPMX_USER/relay_recipients_$FILE_SUFFIX
 
 # Generates list of all domains
 for i in $MAIL_ADDR; do
 	echo $i | cut -d'@' -f2
-done | sort | uniq > $BACKUPMX_USER/domains_$(cat /etc/mailname)
-
+done | sort | uniq > $BACKUPMX_USER/domains_$FILE_SUFFIX