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 7f6c9f133db..1215f800b48 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
@@ -457,7 +457,7 @@ open class Kotlin2JsCompile() : AbstractKotlinCompile<K2JSCompilerArguments>(),
 
         args.friendModules = friendDependency
 
-        args.sourceMapSourceRoots = source.orEmpty()
+        args.sourceMapBaseDirs = source.orEmpty()
                 .asSequence()
                 .filterIsInstance<SourceDirectorySet>()
                 .flatMap { it.srcDirs.asSequence() }