diff --git a/Source/TonSwift/Jettons/JettonTransferData.swift b/Source/TonSwift/Jettons/JettonTransferData.swift
index 4e5a5f3..50aff88 100644
--- a/Source/TonSwift/Jettons/JettonTransferData.swift
+++ b/Source/TonSwift/Jettons/JettonTransferData.swift
@@ -28,7 +28,6 @@ public struct JettonTransferData: CellCodable {
         if let comment = comment {
             commentCell = try Builder().store(int: 0, bits: 32).writeSnakeData(Data(comment.utf8)).endCell()
         }
-        try builder.store(bit: commentCell != nil)
         try builder.storeMaybe(ref: commentCell)
     }