diff --git a/boxfile.yml b/boxfile.yml
index e4a752c..58547b4 100644
--- a/boxfile.yml
+++ b/boxfile.yml
@@ -33,6 +33,7 @@ web.main:
   writable_dirs:
     - tmp
     - log
+    - db
 
   # the path to a logfile you want streamed to the nanobox dashboard
   log_watch: