diff --git a/src/relayFeeCalculator/chain-queries/ethereum.ts b/src/relayFeeCalculator/chain-queries/ethereum.ts
index 3c974a002..cdccb6a77 100644
--- a/src/relayFeeCalculator/chain-queries/ethereum.ts
+++ b/src/relayFeeCalculator/chain-queries/ethereum.ts
@@ -68,6 +68,10 @@ export const SymbolMapping: { [symbol: string]: { address: string; decimals: num
     address: "0xba100000625a3754423978a60c9317c58a424e3D",
     decimals: 18,
   },
+  USDT: {
+    address: "0xdAC17F958D2ee523a2206206994597C13D831ec7",
+    decimals: 6,
+  },
 };
 
 export class EthereumQueries extends QueryBase {