diff --git a/kotlinx-coroutines-core/build.gradle b/kotlinx-coroutines-core/build.gradle
index ef4285c0b4..001df3a055 100644
--- a/kotlinx-coroutines-core/build.gradle
+++ b/kotlinx-coroutines-core/build.gradle
@@ -224,6 +224,7 @@ kotlin.sourceSets.configureEach {
     if (it.name in ["jvmMain", "jsMain", "concurrentMain", "commonMain"]) return
     languageSettings {
         optIn('kotlinx.cinterop.ExperimentalForeignApi')
+        optIn('kotlin.experimental.ExperimentalNativeApi')
     }
 }
 
diff --git a/kotlinx-coroutines-core/native/src/Debug.kt b/kotlinx-coroutines-core/native/src/Debug.kt
index e208addf88..f17c2ed7fc 100644
--- a/kotlinx-coroutines-core/native/src/Debug.kt
+++ b/kotlinx-coroutines-core/native/src/Debug.kt
@@ -9,7 +9,6 @@ import kotlin.native.*
 
 internal actual val DEBUG: Boolean = false
 
-@OptIn(ExperimentalStdlibApi::class)
 internal actual val Any.hexAddress: String get() = identityHashCode().toUInt().toString(16)
 
 internal actual val Any.classSimpleName: String get() = this::class.simpleName ?: "Unknown"