Junie fails to run Spock tests

Hello, I have a pretty standard Maven-based Java project. It uses a mix of JUnit 4 and Spock tests. JUnit 4 tests work as expected, both in the IDE and via Junie. However, when Junie tries to run Spock tests, it fails with “no tests found”, always. These same tests run from the IDE just fine. Is this known? Anything I can do on my side to fix it? I like Junie a lot, but this is a deal-breaker :-(.