diff --git a/erigon-fullnode.cfg b/erigon-fullnode.cfg
index f3890a31..e9a9a92f 100644
--- a/erigon-fullnode.cfg
+++ b/erigon-fullnode.cfg
@@ -1,6 +1,6 @@
 upstreams:
   - id: ${ID}
-    chain: ethereum
+    chain: ${CHAIN}
     labels:
         provider: ${PROVIDER}
 	archive: false