diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/JsUnitTestBase.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/JsUnitTestBase.java
index 0807cecf927..7a59ad2a5da 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/JsUnitTestBase.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/JsUnitTestBase.java
@@ -71,6 +71,7 @@ public abstract class JsUnitTestBase extends MultipleFilesTranslationTest {
         boolean removed = additionalLibraryFiles.remove(Config.LIBRARIES_LOCATION + "/stdlib/testCode.kt");
         assert removed;
         result.addAll(additionalLibraryFiles);
+        result.add(Config.LIBRARIES_LOCATION + "/stdlib/TuplesCode.kt");
         return result;
     }