diff --git a/src/deb/vesta/postinst b/src/deb/vesta/postinst
index 072b845b..364574b5 100755
--- a/src/deb/vesta/postinst
+++ b/src/deb/vesta/postinst
@@ -20,6 +20,9 @@ fi
 if [ ! -f "/usr/local/vesta/data/upgrades/tune-fpm-config-files-v1" ]; then
     touch /usr/local/vesta/data/upgrades/tune-fpm-config-files-v1
     
+    mkdir -p /root/etc-php-backup
+    cp -r /etc/php/ /root/etc-php-backup/
+
     OLDVAL='pm.max_children = 16'
     NEWVAL='pm.max_children = 8'
     find /etc/php/*/fpm/pool.d/ -name "*.conf" -type f -exec grep -l "$OLDVAL" {} \; | xargs sed -i "s|$OLDVAL|$NEWVAL|g"