diff --git a/buildSrc/src/main/kotlin/com/soywiz/korge/gradle/targets/native/KotlinNativeCrossTest.kt b/buildSrc/src/main/kotlin/com/soywiz/korge/gradle/targets/native/KotlinNativeCrossTest.kt
index d2ec5903fe..0a6d256a8d 100644
--- a/buildSrc/src/main/kotlin/com/soywiz/korge/gradle/targets/native/KotlinNativeCrossTest.kt
+++ b/buildSrc/src/main/kotlin/com/soywiz/korge/gradle/targets/native/KotlinNativeCrossTest.kt
@@ -10,7 +10,7 @@ fun Exec.commandLineCross(vararg args: String, type: CrossExecType) {
     commandLine(*type.commands(*args))
 }
 
-open class KotlinNativeCrossTest : org.jetbrains.kotlin.gradle.targets.native.tasks.KotlinNativeTest() {
+abstract class KotlinNativeCrossTest : org.jetbrains.kotlin.gradle.targets.native.tasks.KotlinNativeTest() {
     @Input
     @Option(option = "type", description = "Sets the executable cross type")
     lateinit var type: CrossExecType