diff --git a/src/deb/for-download/tools/multi-php-install.sh b/src/deb/for-download/tools/multi-php-install.sh
index ffee228e6..ce04f5735 100644
--- a/src/deb/for-download/tools/multi-php-install.sh
+++ b/src/deb/for-download/tools/multi-php-install.sh
@@ -145,6 +145,9 @@ if [ "$inst_70" -eq 1 ]; then
     if [ $debian_version -eq 10 ]; then
       cp /etc/php/7.3/fpm/php.ini /etc/php/7.0/fpm/php.ini
     fi
+    if [ $debian_version -eq 11 ]; then
+      cp /etc/php/7.4/fpm/php.ini /etc/php/7.0/fpm/php.ini
+    fi
     press_enter "=== Press enter to continue ==============================================================================="
 fi
 
@@ -166,6 +169,9 @@ if [ "$inst_71" -eq 1 ]; then
     if [ $debian_version -eq 10 ]; then
       cp /etc/php/7.3/fpm/php.ini /etc/php/7.1/fpm/php.ini
     fi
+    if [ $debian_version -eq 11 ]; then
+      cp /etc/php/7.4/fpm/php.ini /etc/php/7.1/fpm/php.ini
+    fi
     press_enter "=== Press enter to continue ==============================================================================="
 fi
 
@@ -187,6 +193,9 @@ if [ "$inst_72" -eq 1 ]; then
     if [ $debian_version -eq 10 ]; then
       cp /etc/php/7.3/fpm/php.ini /etc/php/7.2/fpm/php.ini
     fi
+    if [ $debian_version -eq 11 ]; then
+      cp /etc/php/7.4/fpm/php.ini /etc/php/7.2/fpm/php.ini
+    fi
     press_enter "=== Press enter to continue ==============================================================================="
 fi
 
@@ -209,6 +218,9 @@ if [ "$inst_73" -eq 1 ]; then
     if [ $debian_version -eq 9 ]; then
       cp /etc/php/7.0/apache2/php.ini /etc/php/7.3/fpm/php.ini
     fi
+    if [ $debian_version -eq 11 ]; then
+      cp /etc/php/7.4/fpm/php.ini /etc/php/7.3/fpm/php.ini
+    fi
     press_enter "=== Press enter to continue ==============================================================================="
 fi