diff --git a/install.sh b/install.sh
index 8e9f42a..f971401 100755
--- a/install.sh
+++ b/install.sh
@@ -100,7 +100,7 @@ chown debian-spamd:mail /etc/spamassassin/sql.cf
 if [ $os_codename = jammy ]; then
   sed -i 's|OPTIONS="--create-prefs --max-children 5 --helper-home-dir"|OPTIONS="-x -q -v -u debian-spamd -g mail -m 5"|g' /etc/default/spamassassin
   sed -i 's|CRON=0|CRON=1|g' /etc/default/spamassassin
-elif [ $os_codename != bookworm ]; then
+elif [ $os_codename = bookworm ]; then
   sed -i 's|OPTIONS="--create-prefs --max-children 5 --helper-home-dir"|OPTIONS="-x -q -v -u debian-spamd -g mail -m 5"|g' /etc/default/spamd
   systemctl enable spamassassin-maintenance.timer
   systemctl start spamassassin-maintenance.timer
@@ -174,7 +174,7 @@ chown dovecot:mail /usr/local/libexec/vmail-quota-warning.sh
 if [ $os_codename = jammy ]; then
   systemctl enable spamassassin
   systemctl restart spamassassin
-elif [ $os_codename != bookworm ]; then
+elif [ $os_codename = bookworm ]; then
   systemctl enable spamd
   systemctl restart spamd
 else