diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinJsOptionsImpl.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinJsOptionsImpl.kt
index 634dc8af22d..bbf9f9d806d 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinJsOptionsImpl.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinJsOptionsImpl.kt
@@ -16,13 +16,19 @@
 
 package org.jetbrains.kotlin.gradle.dsl
 
+import org.gradle.api.file.FileCollection
 import org.jetbrains.kotlin.cli.common.arguments.K2JSCompilerArguments
 
 internal class KotlinJsOptionsImpl : KotlinJsOptionsBase() {
     override var freeCompilerArgs: List<String> = listOf()
 
+    var sourceMapBaseDirs: FileCollection? = null
+
     override fun updateArguments(args: K2JSCompilerArguments) {
         super.updateArguments(args)
         copyFreeCompilerArgsToArgs(args)
+        sourceMapBaseDirs?.let {
+            args.sourceMapBaseDirs = it.asPath
+        }
     }
 }
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
index d0fc2224154..63a03a09588 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
@@ -547,6 +547,13 @@ open class Kotlin2JsCompile : AbstractKotlinCompile<K2JSCompilerArguments>(), Ko
             return friendPaths.filter { filter(File(it)) }
         }
 
+    @Suppress("unused")
+    @get:InputFiles
+    @get:Optional
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    internal val sourceMapBaseDirs: FileCollection?
+        get() = kotlinOptionsImpl.sourceMapBaseDirs
+
     private fun isHybridKotlinJsLibrary(file: File): Boolean =
         LibraryUtils.isKotlinJavascriptLibrary(file) && isKotlinLibrary(file)