diff --git a/chain.go b/chain.go
index e4c61c9..d841e5c 100644
--- a/chain.go
+++ b/chain.go
@@ -56,6 +56,7 @@ const (
 	KusamaChainId          = "9d29e4f6-d67c-4c4b-9525-604b04afbe9f"
 	AlgorandChainId        = "706b6f84-3333-4e55-8e89-275e71ce9803"
 	AvalancheChainId       = "cbc77539-0a20-4666-8c8a-4ded62b36f0a"
+	AvalancheCChainId      = "1f67ac58-87ba-3571-9781-e9413c046f34"
 	XDCChainId             = "b12bb04a-1cea-401c-a086-0be61f544889"
 	AptosChainId           = "d2c1c7e1-a1a9-4f88-b282-d93b0a08b42b"
 	TONChainId             = "ef660437-d915-4e27-ad3f-632bfb6ba0ee"
@@ -162,6 +163,8 @@ func GetChainName(chainId string) string {
 		return "Zcash"
 	case AvalancheChainId:
 		return "Avalanche"
+	case AvalancheCChainId:
+		return "Avalanche C-Chain"
 	case MoneroChainId:
 		return "Monero"
 	case NEMChainId:
@@ -276,6 +279,7 @@ var validChainMap = map[string]bool{
 	AlgorandChainId:        true,
 	NearChainId:            true,
 	AvalancheChainId:       true,
+	AvalancheCChainId:      true,
 	XDCChainId:             true,
 	AptosChainId:           true,
 
@@ -336,6 +340,7 @@ func GetFullChains() map[string]bool {
 		KusamaChainId:          true,
 		AlgorandChainId:        true,
 		AvalancheChainId:       true,
+		AvalancheCChainId:      true,
 		XDCChainId:             true,
 		AptosChainId:           true,
 		TONChainId:             true,