diff --git a/Dockerfile.phptest b/Dockerfile.phptest
index 62038b9..2932108 100644
--- a/Dockerfile.phptest
+++ b/Dockerfile.phptest
@@ -1,12 +1,14 @@
 # NAME leenooks/php
-# VERSION 8.0-fpm-test
+# VERSION 8.0-fpm-image-test
 
 FROM registry.leenooks.net/leenooks/php:8.0-fpm-image
 
 RUN pecl install xdebug \
 	&& docker-php-ext-enable xdebug
 
-RUN apt-get update && apt-get install -y npm \
-        && apt-get -y autoremove \
-        && apt-get clean \
-        && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN mv /sbin/init /sbin/init.orig \
+	&& apt-get update && apt-get install -y npm \
+	&& apt-get -y autoremove \
+	&& apt-get clean \
+	&& mv /sbin/init.orig /sbin/init \
+	&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*