A sign outside Umami Burger blamed poor maintenance of the restaurant's bathroom for the closure. View Full Caption DNAinfo/Alex Nitkin

WEST LOOP — City inspectors revoked the food license for Umami Burger, 945 W. Randolph, after the restaurant failed a health inspection Thursday.

A sign posted outside the restaurant cited "inadequate toilet or hand washing facilities" for the closure.

But another sign, posted above the health inspector notice, read that the restaurant would reopen Friday, after "some maintenance to our bathrooms."

Waves of disappointed passersby walked up to the front entrance and pressed their faces against the glass Thursday evening, groaning at the realization that they'd have to take their dinner plans elsewhere.

"Aw man, that's gross," said Jay Smoeher, as he walked away from the restaurant. "You never see that at restaurants around here. This place was really good for the neighborhood."

Representatives of the Chicago Department of Public Health could not be reached to confirm the closure Thursday.

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