diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/IrDescriptorSerializer.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/IrDescriptorSerializer.kt
index d3ec0a6b47f..c311d65de44 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/IrDescriptorSerializer.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/IrDescriptorSerializer.kt
@@ -84,6 +84,12 @@ internal class IrDescriptorSerializer(
         val typeParameters = descriptor.propertyIfAccessor.typeParameters
         typeParameters.forEach {
             proto.addTypeParameter(serializeDescriptor(it))
+            // We explicitly serialize type parameters
+            // as types here so that they are interned in the 
+            // natural order of declaration. Otherwise 
+            // they appear in the order of appearence in the 
+            // body of the function, and get wrong indices.
+            typeSerializer(it.defaultType)
         }
 
         descriptor.valueParameters.forEach {