diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanDescriptorSerializer.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanDescriptorSerializer.kt
index 562fa7caf5e..eb3b14f172c 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanDescriptorSerializer.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanDescriptorSerializer.kt
@@ -325,9 +325,15 @@ class KonanDescriptorSerializer private constructor(
             builder.addVersionRequirement(writeVersionRequirementDependingOnCoroutinesVersion())
         }
 
-        // TODO: K/N & Contracts???
-        // contractSerializer.serializeContractOfFunctionIfAny(descriptor, builder, this)
-        //
+        val descriptorSerializer = DescriptorSerializer(
+                containingDeclaration = containingDeclaration,
+                typeParameters = typeParameters,
+                extension = extension,
+                typeTable = typeTable,
+                versionRequirementTable = versionRequirementTable,
+                serializeTypeTableToFunction = serializeTypeTableToFunction)
+        contractSerializer.serializeContractOfFunctionIfAny(descriptor, builder, descriptorSerializer)
+
         extension.serializeFunction(descriptor, builder)
 
         /* Konan specific chunk */
diff --git a/extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/impl/KonanDeserializedModuleDescriptorFactoryImpl.kt b/extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/impl/KonanDeserializedModuleDescriptorFactoryImpl.kt
index 49759b38e68..4245ef7128e 100644
--- a/extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/impl/KonanDeserializedModuleDescriptorFactoryImpl.kt
+++ b/extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/impl/KonanDeserializedModuleDescriptorFactoryImpl.kt
@@ -2,6 +2,7 @@ package org.jetbrains.kotlin.serialization.konan.impl
 
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.config.LanguageVersionSettings
+import org.jetbrains.kotlin.contracts.ContractDeserializerImpl
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.descriptors.NotFoundClasses
 import org.jetbrains.kotlin.descriptors.PackageFragmentProvider
@@ -108,7 +109,7 @@ internal class KonanDeserializedModuleDescriptorFactoryImpl(
                 NullFlexibleTypeDeserializer,
                 emptyList(),
                 notFoundClasses,
-                ContractDeserializer.DEFAULT,
+                ContractDeserializerImpl(configuration),
                 extensionRegistryLite = KonanSerializerProtocol.extensionRegistry)
 
         for (packageFragment in deserializedPackageFragments) {