ByteDance’s Chinese short video app Douyin(TikTok) has filed a complaint with a court in Beijing to sue Tencent Holdings for monopolistic behaviour and asked for 90 million yuan ($13.94 million) in compensation, ByteDance said on Tuesday.

Tencent restricts users from sharing Douyin content on its instant messaging apps WeChat and QQ, which should be prohibited by anti-monopoly law, ByteDance said, adding that it has asked the court to order Tencent to stop such behaviour.

“We believe that competition is better for consumers and promote innovation,” Douyin said in a statement. “We have filed a lawsuit to protect our rights and those of our users.”

ByteDance competes with Tencent in social media in China and has challenged Tencent previously. In 2018, it sued Tencent for anti-competitive behaviour, alleging Tencent’s social platform QQ zone and its Guanjia software blocked ByteDance’s news aggregator Toutiao’s links.

Tencent filed a lawsuit accusing ByteDance of defamation around the same time.