diff --git a/scripts/install b/scripts/install
index de31c61..986aadd 100755
--- a/scripts/install
+++ b/scripts/install
@@ -100,7 +100,7 @@ ynh_system_user_create --username=$app
 ynh_print_info --message="Configuring php-fpm..."
 
 # Create a dedicated php-fpm config
-ynh_add_fpm_config --package="extra_php_dependencies"
+ynh_add_fpm_config --package="$extra_php_dependencies"
 
 #=================================================
 # SPECIFIC SETUP
diff --git a/scripts/restore b/scripts/restore
index 9c83a0d..399cbdd 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -84,7 +84,7 @@ ynh_print_info --message="Restoring PHP-FPM configuration..."
 ynh_restore_file --origin_path="/etc/php/${YNH_PHP_VERSION}/fpm/pool.d/$app.conf"
 
 # Recreate a dedicated php-fpm config
-ynh_add_fpm_config --package="extra_php_dependencies"
+ynh_add_fpm_config --package="$extra_php_dependencies"
 
 #=================================================
 # SPECIFIC RESTORATION
diff --git a/scripts/upgrade b/scripts/upgrade
index b92a0a3..c9fbb9c 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -137,7 +137,7 @@ ynh_system_user_create --username=$app
 ynh_print_info --message="Upgrading php-fpm configuration..."
 
 # Create a dedicated php-fpm config
-ynh_add_fpm_config --package="extra_php_dependencies"
+ynh_add_fpm_config --package="$extra_php_dependencies"
 
 #=================================================
 # SPECIFIC UPGRADE