diff --git a/libraries/stdlib/js-ir/build.gradle.kts b/libraries/stdlib/js-ir/build.gradle.kts
index 548ea88fa1f..4fc06f4faf4 100644
--- a/libraries/stdlib/js-ir/build.gradle.kts
+++ b/libraries/stdlib/js-ir/build.gradle.kts
@@ -174,3 +174,31 @@ val packFullRuntimeKLib by tasks.registering(Jar::class) {
     archiveFileName.set("full-runtime.klib")
 }
 
+val sourcesJar by tasks.registering(Jar::class) {
+    dependsOn(jsMainSources)
+    val jsMainSourcesDir = jsMainSources.get().destinationDir
+    archiveClassifier.set("sources")
+    includeEmptyDirs = false
+    duplicatesStrategy = DuplicatesStrategy.FAIL
+    from("${rootDir}/core/builtins/native/kotlin") {
+        into("kotlin")
+        include("Comparable.kt")
+        include("Enum.kt")
+    }
+    from("$jsMainSourcesDir/core/builtins/native") {
+        exclude("kotlin/Comparable.kt")
+    }
+    from("$jsMainSourcesDir/core/builtins/src")
+    from("$jsMainSourcesDir/libraries/stdlib/js/src")
+    from("builtins") {
+        into("kotlin")
+        exclude("Enum.kt")
+    }
+    from("runtime") {
+        into("runtime")
+    }
+    from("src") {
+        include("**/*.kt")
+    }
+}
+
diff --git a/libraries/stdlib/js-v1/build.gradle b/libraries/stdlib/js-v1/build.gradle
index 1827c0c9d77..5e1498a229b 100644
--- a/libraries/stdlib/js-v1/build.gradle
+++ b/libraries/stdlib/js-v1/build.gradle
@@ -285,22 +285,15 @@ task libraryJarWithIr(type: Zip, dependsOn: libraryJarWithoutIr) {
 jar.dependsOn(libraryJarWithIr)
 
 task sourcesJar(type: Jar, dependsOn: compileJs) {
+    dependsOn(":kotlin-stdlib-js-ir:sourcesJar")
     archiveClassifier.set('sources')
     includeEmptyDirs false
     duplicatesStrategy = DuplicatesStrategy.FAIL
-    from("${builtinsDir}/native/kotlin") {
-        into 'kotlin'
-        include 'Comparable.kt'
-        include 'Enum.kt'
-    }
-    from(sourceSets.main.allSource) {
-        into 'kotlin'
-        exclude '**/*.java'
-        exclude 'org.w3c/**'
-        exclude 'js/**'
-    }
-    from(sourceSets.main.allSource) {
-        include 'org.w3c/**'
+    from({
+        def irSources = tasks.getByPath(":kotlin-stdlib-js-ir:sourcesJar")
+        zipTree(irSources.outputs.files.first().path)
+    }) {
+        exclude 'META-INF/*'
     }
 }
 
diff --git a/libraries/tools/kotlin-stdlib-docs/build.gradle.kts b/libraries/tools/kotlin-stdlib-docs/build.gradle.kts
index fde39dc6fef..2612b0fab2c 100644
--- a/libraries/tools/kotlin-stdlib-docs/build.gradle.kts
+++ b/libraries/tools/kotlin-stdlib-docs/build.gradle.kts
@@ -135,8 +135,15 @@ fun createStdLibVersionedDocTask(version: String, isLatest: Boolean) =
                 displayName.set("JS")
                 dependsOn("common")
 
-                sourceRoots.from("$kotlin_stdlib_dir/js/src")
-                sourceRoots.from("$kotlin_stdlib_dir/js-v1/src")
+                // list src subdirectories except 'generated' as it should be taken from js-ir/src
+                sourceRoots.from("$kotlin_stdlib_dir/js/src/kotlin")
+                sourceRoots.from("$kotlin_stdlib_dir/js/src/kotlinx")
+                sourceRoots.from("$kotlin_stdlib_dir/js/src/org.w3c")
+
+                sourceRoots.from("$kotlin_stdlib_dir/js-ir/builtins")
+                sourceRoots.from("$kotlin_stdlib_dir/js-ir/runtime/kotlinHacks.kt")
+                sourceRoots.from("$kotlin_stdlib_dir/js-ir/runtime/long.kt")
+                sourceRoots.from("$kotlin_stdlib_dir/js-ir/src")
 
                 perPackageOption("org.w3c") {
                     reportUndocumented.set(false)