diff --git a/BTCPayServer.Tests/docker-compose.yml b/BTCPayServer.Tests/docker-compose.yml
index a7c37a875..4e8b3d0e1 100644
--- a/BTCPayServer.Tests/docker-compose.yml
+++ b/BTCPayServer.Tests/docker-compose.yml
@@ -91,6 +91,7 @@ services:
   customer_lightningd:
     image: nicolasdorier/clightning
     environment: 
+      EXPOSE_TCP: "true"
       LIGHTNINGD_OPT: |
         bitcoin-datadir=/etc/bitcoin
         bitcoin-rpcconnect=bitcoind
@@ -131,6 +132,7 @@ services:
   merchant_lightningd:
     image: nicolasdorier/clightning
     environment: 
+      EXPOSE_TCP: "true"
       LIGHTNINGD_OPT: |
         bitcoin-datadir=/etc/bitcoin
         bitcoin-rpcconnect=bitcoind