diff --git a/internal/ethapi/api_test.go b/internal/ethapi/api_test.go
index 7a40643823..52bbc8b47a 100644
--- a/internal/ethapi/api_test.go
+++ b/internal/ethapi/api_test.go
@@ -850,6 +850,17 @@ func TestEstimateGas(t *testing.T) {
 			},
 			want: 46000,
 		},
+		// Should retrieve the code of 0xef0001 || accounts[0].addr and return an invalid opcode error.
+		{
+			blockNumber: rpc.LatestBlockNumber,
+			call: TransactionArgs{
+				From:              &accounts[0].addr,
+				To:                &accounts[0].addr,
+				Value:             (*hexutil.Big)(big.NewInt(0)),
+				AuthorizationList: []types.SetCodeAuthorization{setCodeAuthorization},
+			},
+			expectErr: errors.New("invalid opcode: opcode 0xef not defined"),
+		},
 		// SetCodeTx with empty authorization list should fail.
 		{
 			blockNumber: rpc.LatestBlockNumber,
@@ -881,7 +892,7 @@ func TestEstimateGas(t *testing.T) {
 				continue
 			}
 			if !errors.Is(err, tc.expectErr) {
-				if !reflect.DeepEqual(err, tc.expectErr) {
+				if err.Error() != tc.expectErr.Error() {
 					t.Errorf("test %d: error mismatch, want %v, have %v", i, tc.expectErr, err)
 				}
 			}