The Broadway revival of “The Miracle Worker” has given up holding out for a miracle. The production, which has struggled to attract auds since it began previews Feb. 12, will shutter April 4.

While B.O. was always on the low side, “Miracle Worker” has notably succeeded in attracting family auds, many with young children, to William Gibson’s familiar 1959 play about Helen Keller and her teacher.

Soon after the show opened March 3 to a mixed bag of reviews — including a couple of tepid ones from prominent papers — producers made the unusual move of issuing a public appeal to theatergoers asking them to turn out for the production.

Although the show has seen weekly B.O. rise during school vacation weeks, receipts have never gotten much above $250,000.

Producers never confirmed the show’s capitalization, but it was probably somewhere between $2 million and $3 million, as many plays are. Considering the brief length of the run and the low grosses, most if not all of that investment is likely lost.

Producing team of “Miracle Worker” includes David Richenthal (“Finian’s Rainbow”), Eric Falkenstein and Randall L. Wreghitt, among others. Kate Whoriskey (“Ruined”) helms a cast that includes Abigail Breslin (as Helen) and Alison Pill (as teacher Annie Sullivan).