diff --git a/libraries/stdlib/js-v1/build.gradle b/libraries/stdlib/js-v1/build.gradle
index 8a27ebeb755..93743bd02b7 100644
--- a/libraries/stdlib/js-v1/build.gradle
+++ b/libraries/stdlib/js-v1/build.gradle
@@ -261,7 +261,7 @@ task libraryJarWithoutIr(type: Jar, dependsOn: compileJs) {
     from jsOutputFileName
     from jsOutputMetaFileName
     from "${jsOutputFileName}.map"
-    from sourceSets.main.output
+    from sourceSets.main.kotlin.classesDirectory
     filesMatching("*.*") { it.mode = 0b110100100 } // KTI-401
 }