diff --git a/chains/v20/chains.json b/chains/v20/chains.json
index 7b4c4ea3e..bdc413074 100644
--- a/chains/v20/chains.json
+++ b/chains/v20/chains.json
@@ -9081,7 +9081,8 @@
         ],
         "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 b2c6a73b3..ca856269a 100644
--- a/chains/v20/chains_dev.json
+++ b/chains/v20/chains_dev.json
@@ -11029,7 +11029,8 @@
         ],
         "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
         }
     },
     {