diff --git a/libraries/stdlib/test/language/main/MainFunctionInt.kt b/libraries/stdlib/test/language/main/MainFunctionInt.kt
new file mode 100644
index 00000000000..ae30f25876e
--- /dev/null
+++ b/libraries/stdlib/test/language/main/MainFunctionInt.kt
@@ -0,0 +1,6 @@
+package language.mainint
+
+fun main(args: Array<String>): Int {
+    println("Hello world: Int")
+    return 0
+}
diff --git a/libraries/stdlib/test/language/main/MainFunctionUnit.kt b/libraries/stdlib/test/language/main/MainFunctionUnit.kt
new file mode 100644
index 00000000000..cb42144ad06
--- /dev/null
+++ b/libraries/stdlib/test/language/main/MainFunctionUnit.kt
@@ -0,0 +1,5 @@
+package language.mainunit
+
+fun main(args: Array<String>): Unit {
+    println("Hello world: Unit")
+}