diff --git a/bin/entrypoint.sh b/bin/entrypoint.sh
index 893a05c..af31c66 100755
--- a/bin/entrypoint.sh
+++ b/bin/entrypoint.sh
@@ -2,21 +2,19 @@
 
 if [ ! -f /data/mumo.ini ]
 then
-  cp /mumo/mumo.ini /data
-
-  chmod a+rw /data/mumo.ini
-  cp -r /mumo/modules /data
-  cp -r /mumo/modules-available /data
+  cp -r /mumo/mumo.ini /mumo/modules /mumo/modules-available /data
   mkdir -p /data/modules-enabled
 fi
 
 # Mumo apparently refuses to read config from mounted dirs,
 # so we copy them ...
 cp -r /data/mumo.ini /mumo
-cp -r /data/modules-enabled /mumo
-cp -r /data/modules /mumo
 
-# make sure the data dir is writable
+# if additional configuration is defined, we will replace our local default config.
+[ -f /data/modules-enabled ] && cp -r /data/modules-enabled /mumo
+[ -f /data/modules ] && cp -r /data/modules /mumo
+
+# make sure our dir is writable for the user
 chown mumo:mumo /mumo -R
 
 exec su mumo -c "python3 /mumo/mumo.py"