Ochem, why does acid truncate this alkyne group?

[BMEEngineer]

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http://imgur.com/DUOLZSw


I understand why the O- is protonated, but can't figure out why that methyl group is lost after the triple bond in acid.
http://imgur.com/DUOLZSw

 

[J777]

Looks like a typo

 

[Shazzam]

Looks like a typo

I agree.