Kapt: Cannot get function with backtick name as annotated element


I have an annotation processor and use RoundEnvironment.getElementsAnnotatedWith to collect the annotated elements to process on.
Also I use backticked function names in tests, like @MyAnnotation fun `perform some test`().
Now, when I run the processor via kapt, those backticked functions do never appear in the list of annotated elements. Others work quite well… Is this a general java annotation processing problem with such names?