diff --git a/php-worker/Dockerfile b/php-worker/Dockerfile
index bfbb5022..17959f94 100644
--- a/php-worker/Dockerfile
+++ b/php-worker/Dockerfile
@@ -531,7 +531,7 @@ RUN set -eux; \
       make &&\
       make install &&\
       rm /tmp/event.tar.gz &&\
-      docker-php-ext-enable event &&\
+      docker-php-ext-enable --ini-name zz-event.ini event &&\
       php -m  | grep -q 'event' \
 ;fi