diff --git a/data/apps/cvtt_musvc.cfg b/data/apps/cvtt_musvc.cfg
index 67183c1..a688ac5 100644
--- a/data/apps/cvtt_musvc.cfg
+++ b/data/apps/cvtt_musvc.cfg
@@ -161,6 +161,7 @@
         , "channel_prefix": "${GLOBAL_CHANNEL_PREFIX}.PXER."
         , "historical_md": {
             "db": {
+                # "cred_key": "TSDB_CVTT_TESTER_01_DIRECT"
                 "cred_key": "TSDB_CVTT_TESTER_01_DIRECT"
             }
         }