2 files changed, 2 insertions, 2 deletions
diff --git a/packages/subproviders/src/subproviders/ledger.ts b/packages/subproviders/src/subproviders/ledger.ts
index 28e348f90..b5ca10ce1 100644
--- a/packages/subproviders/src/subproviders/ledger.ts
+++ b/packages/subproviders/src/subproviders/ledger.ts
@@ -32,7 +32,6 @@ const DEFAULT_ADDRESS_SEARCH_LIMIT = 1000;
  */
 export class LedgerSubprovider extends BaseWalletSubprovider {
     // tslint:disable-next-line:no-unused-variable
-    private readonly _nonceLock = new Lock();
     private readonly _connectionLock = new Lock();
     private readonly _networkId: number;
     private _baseDerivationPath: string;
diff --git a/packages/subproviders/src/utils/wallet_utils.ts b/packages/subproviders/src/utils/wallet_utils.ts
index 4c233645b..7027ca8a0 100644
--- a/packages/subproviders/src/utils/wallet_utils.ts
+++ b/packages/subproviders/src/utils/wallet_utils.ts
@@ -56,10 +56,11 @@ export const walletUtils = {
         parentDerivedKeyInfo: DerivedHDKeyInfo,
         searchLimit: number,
     ): DerivedHDKeyInfo | undefined {
+        const lowercaseAddress = address.toLowerCase();
         let matchedKey: DerivedHDKeyInfo | undefined;
         const derivedKeyIterator = new DerivedHDKeyInfoIterator(parentDerivedKeyInfo, searchLimit);
         for (const key of derivedKeyIterator) {
-            if (key.address === address) {
+            if (key.address === lowercaseAddress) {
                 matchedKey = key;
                 break;
             }