diff --git a/drupal/provisioning/playbook.yml b/drupal/provisioning/playbook.yml
index 0ae20dba..576a44f2 100644
--- a/drupal/provisioning/playbook.yml
+++ b/drupal/provisioning/playbook.yml
@@ -87,7 +87,7 @@
     - name: Adjust OpCache memory setting.
       lineinfile:
         dest: "/etc/php/8.2/apache2/conf.d/10-opcache.ini"
-        regexp: "^opcache.memory_consumption"
+        regexp: "^opcache\\.memory_consumption"
         line: "opcache.memory_consumption = 96"
         state: present
       notify: restart apache