April 30, 2015 2:59 PM EDT

Those who spent last fall tethered to their phones as the Serial podcast unfolded became familiar with a little voice in the show’s introduction. In a shout-out to a sponsor, email marketing service Mail Chimp, one voice struggled to get the company’s name right. “Mail…Kimp?” the voice cried out in undeniable upspeak.

“Mail Kimp” became a sensation, prompting Twitter jokes, mugs emblazoned with the company’s alternative name and even a dedicated Twitter account.

Thursday morning, NPR writer and host Linda Holmes tweeted out the truth about that little voice. Serial co-producer Julie Snyder had the scoop:

For shame — we’ve been mocking a 14-year-old kid this whole time.

Write to Eliza Berman at eliza.berman@time.com.

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