diff --git a/compiler/testData/codegen/box/contracts/kt47300.kt b/compiler/testData/codegen/box/contracts/kt47300.kt
index 683d7d05e67..851f4d84414 100644
--- a/compiler/testData/codegen/box/contracts/kt47300.kt
+++ b/compiler/testData/codegen/box/contracts/kt47300.kt
@@ -1,3 +1,4 @@
+// !OPT_IN: kotlin.contracts.ExperimentalContracts
 // WITH_RUNTIME
 
 import kotlin.contracts.ExperimentalContracts