How can I exclude kts files from the kotlin source...

# gradle

[holgerbrandl]

How can I exclude kts files from the kotlin source-sets in a build.gradle.kts? So how would I translate:

sourceSets {
    main {
        kotlin {
            exclude '*.kts'
       }
   }
}

into gradle kotlin-dsl?

I actually would not mind them being comiled. but gradle 4.7 dies with a java.lang.RuntimeException: Primary constructor not found for script template class ScriptTemplateWithArgs (not found) at org.jetbrains.kotlin.codegen.ScriptCodegen.genConstructor(ScriptCodegen.kt:101)