diff --git a/data/apps/cvtt_musvc_sim.cfg b/data/apps/cvtt_musvc_sim.cfg
index 9b25a57..164738c 100644
--- a/data/apps/cvtt_musvc_sim.cfg
+++ b/data/apps/cvtt_musvc_sim.cfg
@@ -9,7 +9,8 @@
    
     , "pubsub_settings": "@env{PUBSUB_SETTINGS_CONFIG_KEY}"
     , "cache_settings": "@env{CACHE_SETTINGS_CONFIG_KEY}"
-    , "md_cache_settings": "@env{MD_CACHE_SETTINGS_CONFIG_KEY}" # new
+    , "md_cache_settings": "@env{MD_CACHE_SETTINGS_CONFIG_KEY}"
+    , "db_"
 
     , "global_channel_prefix": ${GLOBAL_CHANNEL_PREFIX}