diff --git a/packages/synapse-interface/constants/tokens/master.tsx b/packages/synapse-interface/constants/tokens/master.tsx
index eb6ea6db22..57298364c8 100644
--- a/packages/synapse-interface/constants/tokens/master.tsx
+++ b/packages/synapse-interface/constants/tokens/master.tsx
@@ -361,6 +361,7 @@ export const UNIDX = new Token({
     [CHAINS.ARBITRUM.id]: '0x5429706887FCb58a595677B73E9B0441C25d993D', // redeem
     [CHAINS.FANTOM.id]: '0x0483a76D80D0aFEC6bd2afd12C1AD865b9DF1471',
     [CHAINS.OPTIMISM.id]: '0x28b42698Caf46B4B012CF38b6C75867E0762186D',
+    [CHAINS.BASE.id]: '0x6B4712AE9797C199edd44F897cA09BC57628a1CF',
   },
   decimals: 18,
   symbol: 'UNIDX',