diff --git a/js/js.translator/testData/box/jsModule/externalPackage.js b/js/js.translator/testData/box/jsModule/externalPackage.js
index 6cf28680393..f166d9d531e 100644
--- a/js/js.translator/testData/box/jsModule/externalPackage.js
+++ b/js/js.translator/testData/box/jsModule/externalPackage.js
@@ -23,6 +23,7 @@ define("lib", [], function() {
         A: A,
         B: B,
         foo: foo,
-        bar: bar
+        bar: bar,
+        mbar: -1
     };
 });
\ No newline at end of file
diff --git a/js/js.translator/testData/box/jsModule/externalPackage.kt b/js/js.translator/testData/box/jsModule/externalPackage.kt
index 7105e89e9d4..559dfabaf67 100644
--- a/js/js.translator/testData/box/jsModule/externalPackage.kt
+++ b/js/js.translator/testData/box/jsModule/externalPackage.kt
@@ -16,6 +16,8 @@ package foo
 
 @native val bar: Int = noImpl
 
+@native var mbar: Int = noImpl
+
 fun box(): String {
     val a = A(23)
     assertEquals(23, a.x)
@@ -27,5 +29,8 @@ fun box(): String {
     assertEquals(365, foo(42))
     assertEquals(423, bar)
 
+    mbar = 523
+    assertEquals(523, mbar)
+
     return "OK"
 }
\ No newline at end of file
diff --git a/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.js b/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.js
index e945b85304b..2200abdc0b8 100644
--- a/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.js
+++ b/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.js
@@ -23,7 +23,8 @@ define("lib", [], function() {
         A: A,
         B: B,
         foo: foo,
-        bar: bar
+        bar: bar,
+        mbar: -1
     };
 });
 
diff --git a/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.kt b/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.kt
index 4fd2f572a98..728e5f12479 100644
--- a/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.kt
+++ b/js/js.translator/testData/box/jsModule/externalPackageInDifferentFile.kt
@@ -17,6 +17,8 @@ package foo
 
 @native val bar: Int = noImpl
 
+@native var mbar: Int = noImpl
+
 // FILE: lib2.kt
 package foo
 
@@ -40,5 +42,8 @@ fun box(): String {
 
     assertEquals(12345, C.f())
 
+    mbar = 523
+    assertEquals(523, mbar)
+
     return "OK"
 }
\ No newline at end of file
diff --git a/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.js b/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.js
index 296a54aa94f..eaccc3b1a5f 100644
--- a/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.js
+++ b/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.js
@@ -23,6 +23,7 @@ define("native-lib", [], function() {
         A: A,
         B: B,
         foo: foo,
-        bar: bar
+        bar: bar,
+        mbar: -1
     };
 });
\ No newline at end of file
diff --git a/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.kt b/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.kt
index ac1b8930e94..074e80bb2b5 100644
--- a/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.kt
+++ b/js/js.translator/testData/box/multiModuleWrappers/amd/jsModuleOnPackage.kt
@@ -18,6 +18,7 @@ package foo
 
 @native val bar: Int = noImpl
 
+@native var mbar: Int = noImpl
 
 // MODULE: main(lib)
 // FILE: main.kt
@@ -35,5 +36,8 @@ fun box(): String {
     assertEquals(365, foo(42))
     assertEquals(423, bar)
 
+    mbar = 523
+    assertEquals(523, mbar)
+
     return "OK"
 }
\ No newline at end of file
diff --git a/js/js.translator/testData/jsModule/cases/externalPackage/externalPackage.kt b/js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.a.kt
similarity index 55%
rename from js/js.translator/testData/jsModule/cases/externalPackage/externalPackage.kt
rename to js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.a.kt
index 9c29cb801a9..f176045a82c 100644
--- a/js/js.translator/testData/jsModule/cases/externalPackage/externalPackage.kt
+++ b/js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.a.kt
@@ -15,16 +15,4 @@ package foo
 
 @native val bar: Int = noImpl
 
-fun box(): String {
-    val a = A(23)
-    assertEquals(23, a.x)
-    assertEquals(65, a.foo(42))
-
-    assertEquals(123, B.x)
-    assertEquals(265, B.foo(142))
-
-    assertEquals(365, foo(42))
-    assertEquals(423, bar)
-
-    return "OK"
-}
\ No newline at end of file
+@native var mbar: Int = noImpl
\ No newline at end of file
diff --git a/js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.b.kt b/js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.b.kt
index 88862b028d5..94d0a1a08d5 100644
--- a/js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.b.kt
+++ b/js/js.translator/testData/jsModule/cases/externalPackageInDifferentFile/externalPackageInDifferentFile.b.kt
@@ -13,5 +13,8 @@ fun box(): String {
 
     assertEquals(12345, C.f())
 
+    mbar = 523
+    assertEquals(523, mbar)
+
     return "OK"
 }
\ No newline at end of file
diff --git a/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/lib/lib.kt b/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/lib/lib.kt
index 81629dba835..11ae90a290e 100644
--- a/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/lib/lib.kt
+++ b/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/lib/lib.kt
@@ -13,4 +13,6 @@ package foo
 
 @native fun foo(y: Int): Int = noImpl
 
-@native val bar: Int = noImpl
\ No newline at end of file
+@native val bar: Int = noImpl
+
+@native var mbar: Int = noImpl
\ No newline at end of file
diff --git a/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/main/main.kt b/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/main/main.kt
index a2a43c1f503..9e3fbbb8fc0 100644
--- a/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/main/main.kt
+++ b/js/js.translator/testData/multiModuleWrappers/cases/jsModuleOnPackage/main/main.kt
@@ -11,5 +11,8 @@ fun box(): String {
     assertEquals(365, foo(42))
     assertEquals(423, bar)
 
+    mbar = 523
+    assertEquals(523, mbar)
+
     return "OK"
 }
\ No newline at end of file