diff --git a/install.sh b/install.sh
index e1a206b..92b2084 100755
--- a/install.sh
+++ b/install.sh
@@ -116,9 +116,12 @@ cp -a etc/dovecot/* /etc/dovecot/
 chgrp dovecot /etc/dovecot/dovecot-sql.conf.ext
 chmod 640 /etc/dovecot/dovecot-sql.conf.ext
 sed -i "s|password=password|password=$VMAILPASS|g" /etc/dovecot/dovecot-sql.conf.ext
-cp libexec/vmail-quota-warning.sh /usr/libexec/
-chmod 750 /usr/libexec/vmail-quota-warning.sh
-chown dovecot:mail /usr/libexec/vmail-quota-warning.sh
+if ! [ -d "/usr/local/libexec" ]; then
+  mkdir /usr/local/libexec
+fi
+cp libexec/vmail-quota-warning.sh /usr/local/libexec/
+chmod 750 /usr/local/libexec/vmail-quota-warning.sh
+chown dovecot:mail /usr/local/libexec/vmail-quota-warning.sh
 
 # restart services
 systemctl enable spamassassin
diff --git a/update.sh b/update.sh
index f56f055..42a1abb 100755
--- a/update.sh
+++ b/update.sh
@@ -60,11 +60,11 @@ for etc_config in "${etc_configs_array[@]}"; do
 done
 
 # update libexec script
-if ! diff -q libexec/vmail-quota-warning.sh /usr/libexec/vmail-quota-warning.sh ; then
-  cp libexec/vmail-quota-warning.sh /usr/libexec/vmail-quota-warning.sh
-  chmod 750 /usr/libexec/vmail-quota-warning.sh
-  chown dovecot:mail /usr/libexec/vmail-quota-warning.sh
-  echo "/usr/libexec/vmail-quota-warning.sh updated"
+if ! diff -q libexec/vmail-quota-warning.sh /usr/local/libexec/vmail-quota-warning.sh ; then
+  cp libexec/vmail-quota-warning.sh /usr/local/libexec/vmail-quota-warning.sh
+  chmod 750 /usr/local/libexec/vmail-quota-warning.sh
+  chown dovecot:mail /usr/local/libexec/vmail-quota-warning.sh
+  echo "/usr/local/libexec/vmail-quota-warning.sh updated"
   echo
 fi