diff --git a/testlib/test/language/main/MainFunction.kt b/testlib/test/language/main/MainFunction.kt
new file mode 100644
index 00000000000..076950b50ee
--- /dev/null
+++ b/testlib/test/language/main/MainFunction.kt
@@ -0,0 +1,5 @@
+package language.main
+
+fun main(args: Array<String>) {
+    println("Hello world!")
+}