More than 100 tech companies, including Google, Facebook, Uber and Lyft have signed onto an amicus brief in defense of the Deferred Action for Childhood Arrivals (DACA) program.

The brief, a supporting document provided by parties not involved in a case, is in support of a lawsuit filed in California to challenge President Trump’s cancellation of the program, according to Reuters.

“DACA’s rescission will inflict serious harm on U.S. companies, all workers, and the American economy as a whole,” a draft version of the document reads, according to Reuters.

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Trump announced in September that he was ending DACA, which former President Obama signed as an executive action to protect “Dreamers,” undocumented immigrants who were brought to the U.S. as children.

Trump gave Congress a six-month deadline to pass legislation in place of the program.

Tech companies and universities have been vocal critics of Trump’s decision to end the program, saying that many of their employees and students are DACA recipients and have contributed greatly to their businesses and to the economy because of the program.

Earlier this month, a group of tech companies formed the Coalition for the American Dream to lobby Congress to pass legislation that protects Dreamers.

Democrats and the White House had been discussing a deal on DACA, but it was reported near the end of September that those talks had hit a stumbling block.