diff --git a/dokka-runners/dokka-gradle-plugin/src/main/kotlin/tasks/DokkaGenerateTask.kt b/dokka-runners/dokka-gradle-plugin/src/main/kotlin/tasks/DokkaGenerateTask.kt
index 64f2137ec9..5f02fa25a8 100644
--- a/dokka-runners/dokka-gradle-plugin/src/main/kotlin/tasks/DokkaGenerateTask.kt
+++ b/dokka-runners/dokka-gradle-plugin/src/main/kotlin/tasks/DokkaGenerateTask.kt
@@ -101,7 +101,8 @@ constructor(
      * To disable this behaviour set this property to `null`.
      */
     @InternalDokkaGradlePluginApi
-    @get:Internal
+    @get:Optional
+    @get:OutputFile
     abstract val dokkaConfigurationJsonFile: RegularFileProperty
 
     /**