diff --git a/subgraph.testnet.yaml b/subgraph.testnet.yaml
index 6d1d670..c6e3764 100644
--- a/subgraph.testnet.yaml
+++ b/subgraph.testnet.yaml
@@ -23,6 +23,8 @@ dataSources:
                 file: ./abis/AavegotchiDiamond.json
               - name: RealmDiamond
                 file: ./abis/RealmDiamond.json
+              - name: IERC721
+                file: ./abis/diamond_erc721.json
           eventHandlers:
               - event: BuyPortals(indexed address,indexed address,uint256,uint256,uint256)
                 handler: handleBuyPortals