diff --git a/chains/v20/chains.json b/chains/v20/chains.json
index 057324cfb..55fed7158 100644
--- a/chains/v20/chains.json
+++ b/chains/v20/chains.json
@@ -8867,7 +8867,8 @@
         ],
         "additional": {
             "themeColor": "#58C8F6",
-            "stakingWiki": "https://docs.novawallet.io/nova-wallet-wiki/staking/avail-avail-staking"
+            "stakingWiki": "https://docs.novawallet.io/nova-wallet-wiki/staking/avail-avail-staking",
+            "supportsGenericLedgerApp": false
         }
     },
     {
diff --git a/chains/v20/chains_dev.json b/chains/v20/chains_dev.json
index f1965c14d..414aa076e 100644
--- a/chains/v20/chains_dev.json
+++ b/chains/v20/chains_dev.json
@@ -11081,7 +11081,8 @@
         ],
         "additional": {
             "themeColor": "#58C8F6",
-            "stakingWiki": "https://docs.novawallet.io/nova-wallet-wiki/staking/avail-avail-staking"
+            "stakingWiki": "https://docs.novawallet.io/nova-wallet-wiki/staking/avail-avail-staking",
+            "supportsGenericLedgerApp": false
         }
     },
     {