diff --git a/web3swift/ABI/Classes/ABIEncoder.swift b/web3swift/ABI/Classes/ABIEncoder.swift
index d6cb85c..6c13a8c 100644
--- a/web3swift/ABI/Classes/ABIEncoder.swift
+++ b/web3swift/ABI/Classes/ABIEncoder.swift
@@ -285,7 +285,6 @@ extension ABIElement {
                     guard let h = pointer.head, let _ = pointer.tail else {return nil}
                     guard h != Data() else {return nil}
                     heads.append(h)
-                    tailsPointer = tailsPointer + BigUInt(h.count)
                     tails.append(tail)
                     tailsPointer = tailsPointer + BigUInt(tail.count)
                 } else {