diff --git a/BTCPayServer.Tests/docker-compose.yml b/BTCPayServer.Tests/docker-compose.yml
index 28f525584..8fa6b2db5 100644
--- a/BTCPayServer.Tests/docker-compose.yml
+++ b/BTCPayServer.Tests/docker-compose.yml
@@ -210,6 +210,7 @@ services:
       CHAIN: bitcoin
       BACKEND: bitcoind
       DEBUG: debug
+      EXTERNALIP: merchant_lnd:9735
     ports:
       - "53280:8080"
     expose: