diff --git a/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/GradleBuildScriptManipulator.kt.173 b/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/GradleBuildScriptManipulator.kt.173
index bfb55a775e6..3db947598af 100644
--- a/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/GradleBuildScriptManipulator.kt.173
+++ b/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/GradleBuildScriptManipulator.kt.173
@@ -21,9 +21,10 @@ import com.intellij.openapi.roots.ExternalLibraryDescriptor
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiFile
 import org.gradle.util.GradleVersion
+import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.plugins.gradle.frameworkSupport.BuildScriptDataBuilder
 
-interface GradleBuildScriptManipulator<out Psi: PsiFile> {
+interface GradleBuildScriptManipulator<out Psi : PsiFile> {
     val scriptFile: Psi
     val preferNewSyntax: Boolean
 
@@ -42,6 +43,8 @@ interface GradleBuildScriptManipulator<out Psi: PsiFile> {
 
     fun changeCoroutineConfiguration(coroutineOption: String): PsiElement?
 
+    fun changeLanguageFeatureConfiguration(feature: LanguageFeature, state: LanguageFeature.State, forTests: Boolean): PsiElement?
+
     fun changeLanguageVersion(version: String, forTests: Boolean): PsiElement?
 
     fun changeApiVersion(version: String, forTests: Boolean): PsiElement?