---
title: My Mnemonic Phrase Is Invalid
description: If you're trying to restore your Polkadot account from your mnemonic phrase but you're getting an error that it is invalid, make sure to check a few things listed here.
url: https://developer.polkadot.com/wiki/learn/how-to/mnemonic-invalid/
word_count: 169
token_estimate: 257
version_hash: sha256:539199d710305b7f2968152c5d08cec6855e9b05e5554ef3d3b34e0497347f97
last_updated: 2026-10-28T08:43:55+00:00
---

!!!info "Related concepts"
    For the underlying concepts, see [Accounts](../learn-accounts.md).

When you're trying to restore your account on the Polkadot Developer Interface or the Polkadot Developer Signer, you may get an error like in these screenshots.

Polkadot Developer Interface:

![](../../assets/how-to/65032425393.png)

Polkadot Developer Signer:

![](../../assets/how-to/65016202103.png)

If your mnemonic phrase appears to be invalid, please check the following:

  * That all the words are entered. The error message will show up until you fill out the whole mnemonic phrase correctly. Usually, a mnemonic phrase consists of 12 or 24 words.

  * All the words are spelled correctly. You can check them against [this list](https://github.com/bitcoin/bips/blob/master/bip-0039/english.txt) to ensure they are spelled properly.

  * The words are entered in the correct order.

  * You enter the words in small letters only.

  * You use only one space between the words and no space or new line at the end or beginning.

  * Your keyboard is set to English.

* * *