diff --git a/states/php/defaults.yaml b/states/php/defaults.yaml
index 1f5b17d..8ba0264 100644
--- a/states/php/defaults.yaml
+++ b/states/php/defaults.yaml
@@ -138,3 +138,5 @@ php:
       soap.wsdl_cache_limit: 5
     ldap:
       ldap.max_links: '-1'
+    opcache:
+      opcache.interned_strings_buffer: 16