diff --git a/_data/chains/eip155-200.json b/_data/chains/eip155-200.json
index 516b5375..010c8d5c 100644
--- a/_data/chains/eip155-200.json
+++ b/_data/chains/eip155-200.json
@@ -17,5 +17,9 @@
     "name": "blockscout",
     "url": "https://blockscout.com/xdai/arbitrum",
     "standard": "EIP3091"
-  }]
+  }],
+  "parent": {
+    "chain": "eip155-100",
+    "type": "L2"
+  }
 }
\ No newline at end of file