diff --git a/experiments/Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/StubGenerator.kt b/experiments/Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/StubGenerator.kt
index 574a5bf4ae6..853f7aaf8bf 100644
--- a/experiments/Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/StubGenerator.kt
+++ b/experiments/Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/StubGenerator.kt
@@ -1,6 +1,7 @@
 package org.jetbrains.kotlin.native.interop.gen.jvm
 
 import org.jetbrains.kotlin.native.interop.indexer.*
+import java.lang.IllegalStateException
 
 class StubGenerator(
         val nativeIndex: NativeIndex,