diff --git a/kotlin-native/backend.native/tests/interop/objc/smoke.kt b/kotlin-native/backend.native/tests/interop/objc/smoke.kt
index 4bad1609993..0408a0ea2d8 100644
--- a/kotlin-native/backend.native/tests/interop/objc/smoke.kt
+++ b/kotlin-native/backend.native/tests/interop/objc/smoke.kt
@@ -75,7 +75,7 @@ fun run() {
     if (foo.hashCode() == hash) {
         // toString (virtually):
         if (Platform.memoryModel == MemoryModel.STRICT)
-            println(map.keys.map { it.toString() }.min() == foo.description())
+            println(map.keys.map { it.toString() }.minOrNull() == foo.description())
         else
             // TODO: hack until proper cycle collection in maps.
             println(true)