diff --git a/packages/sdk/src/common/decorators/ErrorHandler.ts b/packages/sdk/src/common/decorators/ErrorHandler.ts
index 6f0b3f96..26f3038f 100644
--- a/packages/sdk/src/common/decorators/ErrorHandler.ts
+++ b/packages/sdk/src/common/decorators/ErrorHandler.ts
@@ -49,7 +49,7 @@ export const ErrorHandler = function (headMessage: HeadMessage = 'Error:') {
   ) {
     const methodName = String(context.name);
     const replacementMethod = function (this: This, ...args: Args): Return {
-      const callback = args[0].callback;
+      const callback = args[0]?.callback;
 
       try {
         const result = originalMethod.call(this, ...args);
diff --git a/packages/sdk/src/staking/staking.ts b/packages/sdk/src/staking/staking.ts
index 71ec7d79..129a71e1 100644
--- a/packages/sdk/src/staking/staking.ts
+++ b/packages/sdk/src/staking/staking.ts
@@ -89,26 +89,21 @@ export class LidoSDKStaking {
 
   @Logger('LOG:')
   private async stakeEOA(props: StakeProps): Promise<StakeResult> {
-    const {
-      value,
-      callback = () => {},
-      referralAddress = zeroAddress,
-      account,
-    } = props;
+    const { value, callback, referralAddress = zeroAddress, account } = props;
 
     invariant(this.core.rpcProvider, 'RPC provider is not defined');
     invariant(this.core.web3Provider, 'Web3 provider is not defined');
     // Checking the daily protocol staking limit
     await this.validateStakeLimit(value);
 
-    callback({ stage: TransactionCallbackStage.GAS_LIMIT });
+    callback?.({ stage: TransactionCallbackStage.GAS_LIMIT });
     const { gasLimit, overrides } = await this.submitGasLimit(
       account,
       value,
       referralAddress,
     );
 
-    callback({ stage: TransactionCallbackStage.SIGN, payload: gasLimit });
+    callback?.({ stage: TransactionCallbackStage.SIGN, payload: gasLimit });
 
     const contract = await this.getContractStETH();
     const transaction = await contract.write.submit([referralAddress], {
@@ -119,7 +114,7 @@ export class LidoSDKStaking {
       account,
     });
 
-    callback({
+    callback?.({
       stage: TransactionCallbackStage.RECEIPT,
       payload: transaction,
     });
@@ -129,7 +124,7 @@ export class LidoSDKStaking {
         hash: transaction,
       });
 
-    callback({
+    callback?.({
       stage: TransactionCallbackStage.CONFIRMATION,
       payload: transactionReceipt,
     });
@@ -139,7 +134,7 @@ export class LidoSDKStaking {
         hash: transactionReceipt.transactionHash,
       });
 
-    callback({
+    callback?.({
       stage: TransactionCallbackStage.DONE,
       payload: confirmations,
     });