diff --git a/data/refdata/exchanges.cfg b/data/refdata/exchanges.cfg
index 60875b1..d1d087e 100644
--- a/data/refdata/exchanges.cfg
+++ b/data/refdata/exchanges.cfg
@@ -10,7 +10,7 @@
         # , "quote_asset":        "USD"
 
         "mktdata" : {
-            "class":  "cvttpy_trading.exchanges.coinbase.spot.mkt_data.CoinbaseSpotMdFeed"
+            "class":  "cvttpy_trading.exchanges.coinbase.spot.mkt_data.XXXXXXXX"
 
             , "reconnect_secs": 2
             , "max_connections": 10