diff --git a/papermerge/rootfs/etc/cont-init.d/99-configuration b/papermerge/rootfs/etc/cont-init.d/99-configuration
index b7559c6b9..3c9c21303 100644
--- a/papermerge/rootfs/etc/cont-init.d/99-configuration
+++ b/papermerge/rootfs/etc/cont-init.d/99-configuration
@@ -7,7 +7,7 @@
   #Set media dir
   MEDIADIR=$(bashio::config 'storage_dir') 
   #clean data
-  sed -i 'MEDIA_DIR' /config/papermerge.conf.py
+  sed -i '/MEDIA_DIR/d' /config/papermerge.conf.py
   #add data
   sed -i "2 i\MEDIA_DIR = $MEDIADIR" /config/papermerge.conf.py
   bashio::log.info "Storage dir set to $MEDIADIR"