diff --git a/misc/tools.func b/misc/tools.func
index 28a4869..d8e7e11 100644
--- a/misc/tools.func
+++ b/misc/tools.func
@@ -253,6 +253,9 @@ install_php() {
   local PHP_MODULE="${PHP_MODULE:-}"
   local PHP_APACHE="${PHP_APACHE:-NO}"
   local PHP_FPM="${PHP_FPM:-NO}"
+  local DISTRO_CODENAME
+  DISTRO_CODENAME=$(awk -F= '/VERSION_CODENAME/ { print $2 }' /etc/os-release)
+
   local DEFAULT_MODULES="bcmath,cli,curl,gd,intl,mbstring,opcache,readline,xml,zip"
   local COMBINED_MODULES
 
@@ -283,7 +286,7 @@ install_php() {
     if [[ ! -f /etc/apt/sources.list.d/php.list ]]; then
       $STD curl -fsSLo /tmp/debsuryorg-archive-keyring.deb https://packages.sury.org/debsuryorg-archive-keyring.deb
       $STD dpkg -i /tmp/debsuryorg-archive-keyring.deb
-      echo "deb [signed-by=/usr/share/keyrings/deb.sury.org-php.gpg] https://packages.sury.org/php/ $(lsb_release -sc) main" \
+      echo "deb [signed-by=/usr/share/keyrings/deb.sury.org-php.gpg] https://packages.sury.org/php/ ${DISTRO_CODENAME} main" \
         >/etc/apt/sources.list.d/php.list
       $STD apt-get update
     fi