diff --git a/Dockerfile b/Dockerfile
index 9fdc910..3329ef0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN \
 
 # install runtime packages
  apk add --no-cache \
-        imagemagick && \
+	imagemagick && \
 
 # install calibre-web
  mkdir -p \
diff --git a/root/etc/cont-init.d/30-config b/root/etc/cont-init.d/30-config
index 5105a76..7771b9e 100644
--- a/root/etc/cont-init.d/30-config
+++ b/root/etc/cont-init.d/30-config
@@ -1,13 +1,14 @@
 #!/usr/bin/with-contenv bash
 
-# put database in /config
+# copy database to /config if not exists
 [[ ! -e /config/app.db ]] && \
 	cp /defaults/app.db /config/app.db \
 
-# link to /app/calibre-web/app.db
-ln -s /config/app.db /app/calibre-web/app.db
+# create symlink for database
+[[ ! -L /app/calibre-web/app.db ]] && \
+	ln -s /config/app.db /app/calibre-web/app.db
 
 # permissions
 chown -R abc:abc \
 	/config \
-        /app/calibre-web
+	/app/calibre-web
diff --git a/root/etc/services.d/calibre-web/run b/root/etc/services.d/calibre-web/run
index 9df1c90..1dea53c 100644
--- a/root/etc/services.d/calibre-web/run
+++ b/root/etc/services.d/calibre-web/run
@@ -4,4 +4,3 @@ cd /app/calibre-web || exit
 
 exec \
 	s6-setuidgid abc python /app/calibre-web/cps.py
-