diff --git a/js/js.translator/testData/box/native/inheritanceInNativeClass.js b/js/js.translator/testData/box/native/inheritanceInNativeClass.js
index ac0cb0ed686..d454fe0c948 100644
--- a/js/js.translator/testData/box/native/inheritanceInNativeClass.js
+++ b/js/js.translator/testData/box/native/inheritanceInNativeClass.js
@@ -1,8 +1,8 @@
 function createA() {
     function ADerived() {
     }
-    ADerived.prototype = Object.create(JS_TESTS.foo.A.prototype);
-    ADerived.prototype.foo_za3lpa$ = function(n) {
+    ADerived.prototype = Object.create(JS_TESTS.A.prototype);
+    ADerived.prototype.foo = function(n) {
         return 24;
     };
     return new ADerived();
@@ -11,9 +11,9 @@ function createA() {
 function createB() {
     function BDerived() {
     }
-    BDerived.prototype = Object.create(JS_TESTS.foo.B.prototype);
-    BDerived.prototype.bar_za3lpa$ = function(n) {
-        return this.foo_za3lpa$(n);
+    BDerived.prototype = Object.create(JS_TESTS.B.prototype);
+    BDerived.prototype.bar = function(n) {
+        return this.foo(n);
     };
     return new BDerived();
 }
\ No newline at end of file
diff --git a/js/js.translator/testData/box/native/inheritanceInNativeClass.kt b/js/js.translator/testData/box/native/inheritanceInNativeClass.kt
index b9200b7075f..cf610f28af0 100644
--- a/js/js.translator/testData/box/native/inheritanceInNativeClass.kt
+++ b/js/js.translator/testData/box/native/inheritanceInNativeClass.kt
@@ -1,17 +1,19 @@
-// IGNORE_BACKEND: JS_IR
 // SKIP_MINIFICATION
 // Contains calls from external JS code
-package foo
 
 open class A {
+    @JsName("foo")
     open protected fun foo(n: Int) = 23
 
+    @JsName("bar")
     fun bar(n: Int) = foo(n) + 100
 }
 
 open class B {
+    @JsName("foo")
     protected fun foo(n: Int) = 42
 
+    @JsName("bar")
     open fun bar(n: Int) = 142
 }