diff --git a/data/ecosystems/e/ethereum.toml b/data/ecosystems/e/ethereum.toml
index 44f64aef..cc79128a 100644
--- a/data/ecosystems/e/ethereum.toml
+++ b/data/ecosystems/e/ethereum.toml
@@ -961,6 +961,10 @@ tags = ["Dapp"]
 url = "https://github.com/ExpandTeam/expand-app"
 tags = ["Dapp"]
 
+[[repo]]
+url = "https://github.com/EYBlockchain/nightfall"
+tags = ["Protocol"]
+
 [[repo]]
 url = "https://github.com/fivedogit/solidity-baby-steps"