diff --git a/tests/dockerfiles/php.ini b/tests/dockerfiles/php.ini
index 0c97b17d0..3038d5755 100644
--- a/tests/dockerfiles/php.ini
+++ b/tests/dockerfiles/php.ini
@@ -6,7 +6,6 @@ display_startup_errors = On
 ffi.enable=true
 
 [opcache]
-zend_extension=opcache
 opcache.memory_consumption=256M
 opcache.enable=1
 opcache.enable_cli=1