diff --git a/plugins/templates/before-script.yml b/plugins/templates/before-script.yml
index 273f93f5f59347145494a1b1497d2e4d8c89b827..7a9ac994d94e5ea5687f00ab7b0c0c963073c71f 100644
--- a/plugins/templates/before-script.yml
+++ b/plugins/templates/before-script.yml
@@ -16,5 +16,5 @@ before_script:
   - composer global require yoast/phpunit-polyfills
 
   # Enable Xdebug for coverage reports
-  - echo "extension=xdebug.so" > /usr/local/etc/php/conf.d/xdebug.ini
+  - echo "zend_extension=xdebug.so" > /usr/local/etc/php/conf.d/xdebug.ini
   - echo "xdebug.mode=coverage" >> /usr/local/etc/php/conf.d/xdebug.ini