diff --git a/kotlin-native/backend.native/tests/interop/objc/kt42172/main.kt b/kotlin-native/backend.native/tests/interop/objc/kt42172/main.kt
index f7065b584d7..81afe21686f 100644
--- a/kotlin-native/backend.native/tests/interop/objc/kt42172/main.kt
+++ b/kotlin-native/backend.native/tests/interop/objc/kt42172/main.kt
@@ -1,4 +1,4 @@
-@file:OptIn(kotlin.native.runtime.NativeRuntimeApi::class, ObsoleteWorkersApi::class
+@file:OptIn(kotlin.native.runtime.NativeRuntimeApi::class, ObsoleteWorkersApi::class)
 
 import objclib.*
 import kotlin.native.concurrent.*