Playtech shares fell 4% on Wednesday after the gambling software maker once again backed a buyout by Aristocrat Leisure, following a report that the London-listed company was exploring a breakup if the deal does not go through.

Britain’s Playtech in a statement did not address the Sky News report, but said that it continued to endorse the 2.1 billion pound ($2.8 billion) offer from Australia’s Aristocrat which is due for shareholder voting on Feb. 2.

While regulatory approvals for the Aristocrat deal are on track, there is uncertainty over whether shareholders would vote in its favour after Playtech indicated investors were wary.

On Jan. 21, Playtech said it was speaking to shareholders about Aristocrat’s offer, saying “a number of material investors have not to date engaged meaningfully about their views” on the proposal.