diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DeepCopyIrTreeWithDescriptors.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DeepCopyIrTreeWithDescriptors.kt
index d06c1be1107..64fe3a3fb9d 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DeepCopyIrTreeWithDescriptors.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DeepCopyIrTreeWithDescriptors.kt
@@ -229,6 +229,10 @@ internal class DeepCopyIrTreeWithDescriptors(val targetDescriptor: FunctionDescr
                     /* storageManager        = */ LockBasedStorageManager.NO_LOCKS
             ) {
                 override fun getVisibility() = visibility
+
+                override fun getDeclaredTypeParameters(): List<TypeParameterDescriptor> {
+                    return oldDescriptor.declaredTypeParameters
+                }
             }
         }
     }
@@ -497,6 +501,19 @@ internal class DeepCopyIrTreeWithDescriptors(val targetDescriptor: FunctionDescr
             }
         }
 
+        override fun visitField(declaration: IrField): IrField {
+            val descriptor = mapPropertyDeclaration(declaration.descriptor)
+            return IrFieldImpl(
+                    declaration.startOffset, declaration.endOffset,
+                    mapDeclarationOrigin(declaration.origin),
+                    descriptor,
+                    context.ir.translateErased(descriptor.type),
+                    declaration.initializer?.transform(this@InlineCopyIr, null)
+            ).apply {
+                transformAnnotations(declaration)
+            }
+        }
+
         //---------------------------------------------------------------------//
 
         override fun visitSimpleFunction(declaration: IrSimpleFunction): IrFunction {
diff --git a/backend.native/tests/build.gradle b/backend.native/tests/build.gradle
index e8ce233e76b..edc0239f20d 100644
--- a/backend.native/tests/build.gradle
+++ b/backend.native/tests/build.gradle
@@ -2518,6 +2518,11 @@ task inline_defaultArgs(type: RunKonanTest) {
     source = "codegen/inline/defaultArgs.kt"
 }
 
+task classDeclarationInsideInline(type: RunKonanTest) {
+    source = "codegen/inline/classDeclarationInsideInline.kt"
+    goldValue = "test1: 1.0\n1\ntest2\n"
+}
+
 task deserialized_inline0(type: RunKonanTest) {
     source = "serialization/deserialized_inline0.kt"
 }
diff --git a/backend.native/tests/codegen/inline/classDeclarationInsideInline.kt b/backend.native/tests/codegen/inline/classDeclarationInsideInline.kt
new file mode 100644
index 00000000000..aec11473a2e
--- /dev/null
+++ b/backend.native/tests/codegen/inline/classDeclarationInsideInline.kt
@@ -0,0 +1,24 @@
+package codegen.inline.classDeclarationInsideInline
+
+import kotlin.test.*
+
+fun f() {
+    run {
+        class Test1<T : Number, G>(val x: T, val y: G) {
+            override fun toString() = "test1: ${x.toDouble()}"
+        }
+
+        class Test2<X>(val a: Test1<Int, X>) {
+            override fun toString() = "test2"
+        }
+
+        val v = Test2(Test1(1, Test2(Test1(1, 3))))
+        println(v.a)
+        println(v.a.x)
+        println(v.a.y)
+    }
+}
+
+@Test fun test() {
+    f()
+}