diff --git a/chains.json b/chains.json
index a12cc394..2475fd2c 100644
--- a/chains.json
+++ b/chains.json
@@ -83,6 +83,13 @@
     "chainId": 99,
     "networkId": 2
   },
+  "100": {
+    "name": "xDAI Chain",
+    "chain": "dai",
+    "network": "mainnet",
+    "chainId": 100,
+    "networkId": 1
+  },
   "820": {
     "name": "Callisto Mainnet",
     "chain": "clo",