diff --git a/docker-compose.yml b/docker-compose.yml
index 884a9b2..2519848 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -91,19 +91,7 @@
     mem_limit: 256m
     logging:
       driver: json-file
-    entrypoint: |
-      bash -c 'bash -s <<EOF
-        trap "break;exit" SIGHUP SIGINT SIGTERM
-    
-        while [ ! -f /var/www/html/config/config.php ]; do
-          sleep 1
-        done
-    
-        while true; do
-          php -f /var/www/html/cron.php
-          sleep 15m
-        done
-      EOF'
+    entrypoint: /cron.sh
     depends_on:
       - nextcloud-database
       - nextcloud-redis
diff --git a/docker/app/Dockerfile b/docker/app/Dockerfile
index a0355ac..9e728be 100644
--- a/docker/app/Dockerfile
+++ b/docker/app/Dockerfile
@@ -10,7 +10,8 @@
 RUN apt-get update && \
 	apt-get install -y --no-install-recommends \
 	smbclient libsmbclient-dev \
-	libbz2-dev
+	libbz2-dev \
+	libmagickcore-6.q16-3-extra
 RUN apt-get clean && rm -rf /var/lib/apt/lists/*
 RUN	pecl install \
 	smbclient