diff --git a/modules/openapi-generator-gradle-plugin/src/main/kotlin/org/openapitools/generator/gradle/plugin/tasks/GenerateTask.kt b/modules/openapi-generator-gradle-plugin/src/main/kotlin/org/openapitools/generator/gradle/plugin/tasks/GenerateTask.kt
index b1dcd474ae8..c3e1efcee94 100644
--- a/modules/openapi-generator-gradle-plugin/src/main/kotlin/org/openapitools/generator/gradle/plugin/tasks/GenerateTask.kt
+++ b/modules/openapi-generator-gradle-plugin/src/main/kotlin/org/openapitools/generator/gradle/plugin/tasks/GenerateTask.kt
@@ -81,9 +81,8 @@ open class GenerateTask : DefaultTask() {
     val outputDir = project.objects.property<String>()
 
     @Suppress("unused")
-    @get:Internal
     @set:Option(option = "input", description = "The input specification.")
-    @Input
+    @Internal
     var input: String? = null
         set(value) {
             inputSpec.set(value)