Add mula API hotfix

[Donnype]

Changes

see #3475

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Code Checklist

• All the commits in this PR are properly PGP-signed and verified.
• This PR only contains functionality relevant to the issue.
• I have written unit tests for the changes or fixes I made.
• I have checked the documentation and made changes where necessary.
• I have performed a self-review of my code and refactored it to the best of my abilities.

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Checklist for code reviewers:

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Checklist for QA:

Copy-paste the checklist from the docs/source/templates folder into your comment.