diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/sources/DefaultKotlinSourceSet.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/sources/DefaultKotlinSourceSet.kt
index 46d9c870ccc..21338ae7a42 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/sources/DefaultKotlinSourceSet.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/sources/DefaultKotlinSourceSet.kt
@@ -25,7 +25,6 @@ import javax.inject.Inject
 
 const val METADATA_CONFIGURATION_NAME_SUFFIX = "DependenciesMetadata"
 
-@InternalKotlinGradlePluginApi
 abstract class DefaultKotlinSourceSet @Inject constructor(
     final override val project: Project,
     val displayName: String