diff --git a/libraries/tools/kotlin-gradle-plugin-idea/build.gradle.kts b/libraries/tools/kotlin-gradle-plugin-idea/build.gradle.kts
index 8f2448557a8..fe16223e763 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/build.gradle.kts
+++ b/libraries/tools/kotlin-gradle-plugin-idea/build.gradle.kts
@@ -45,13 +45,15 @@ publish(moduleMetadata = true) {
     val kotlinLibraryComponent = components[ADHOC_COMPONENT_NAME] as AdhocComponentWithVariants
 
     kotlinLibraryComponent.addVariantsFromConfiguration(configurations.testFixturesApiElements.get()) {
-        mapToMavenScope("compile")
         skipUnpublishable()
+        mapToMavenScope("compile")
+        mapToOptional()
     }
 
     kotlinLibraryComponent.addVariantsFromConfiguration(configurations.testFixturesRuntimeElements.get()) {
-        mapToMavenScope("runtime")
         skipUnpublishable()
+        mapToMavenScope("runtime")
+        mapToOptional()
     }
 }