diff --git a/packages/react-hooks/src/useLedger.ts b/packages/react-hooks/src/useLedger.ts
index 7c86d537035f..3d023b7badd5 100644
--- a/packages/react-hooks/src/useLedger.ts
+++ b/packages/react-hooks/src/useLedger.ts
@@ -33,6 +33,7 @@ const EMPTY_STATE: StateBase = {
 };
 
 const availGenesis: typeof knownGenesis = {
+  avail: ['0xb91746b45e0346cc2f815a520b9c6cb4d5c0902af848db0a80f85932d2e8276a'],
   'avail-turing': ['0xd3d2f3a3495dc597434a99d7d449ebad6616db45e4e4f178f31cc6fa14378b70']
 };
 const newKnownGenesis: typeof knownGenesis = {
@@ -41,6 +42,7 @@ const newKnownGenesis: typeof knownGenesis = {
 };
 
 const availLedger: typeof knownLedger = {
+  avail: 0x800002c5,
   'avail-turing': 0x800002c5
 };
 const newKnownLedger: typeof knownLedger = {