diff --git a/generators/src/org/jetbrains/kotlin/generators/tests/GenerateTests.kt b/generators/src/org/jetbrains/kotlin/generators/tests/GenerateTests.kt
index 48d301ea53c..bde4f1e5932 100644
--- a/generators/src/org/jetbrains/kotlin/generators/tests/GenerateTests.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/tests/GenerateTests.kt
@@ -1066,7 +1066,7 @@ fun main(args: Array<String>) {
     }
 }
 
-private class TestGroup(val testsRoot: String, val testDataRoot: String) {
+internal class TestGroup(val testsRoot: String, val testDataRoot: String) {
     inline fun <reified T: TestCase> testClass(
             suiteTestClass: String = getDefaultSuiteTestClass(T::class.java),
             noinline init: TestClass.() -> Unit