diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/external/ExternalTargetApiExtensions.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/external/ExternalTargetApiExtensions.kt
index 7c9df31d5c8..0b17e2c537e 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/external/ExternalTargetApiExtensions.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/external/ExternalTargetApiExtensions.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.gradle.plugin.mpp.external
 
 import org.jetbrains.kotlin.gradle.ExternalKotlinTargetApi
+import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation
 import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
 import org.jetbrains.kotlin.gradle.plugin.KotlinTarget
 import org.jetbrains.kotlin.gradle.plugin.mpp.internal
@@ -16,4 +17,7 @@ import org.jetbrains.kotlin.tooling.core.MutableExtras
 val KotlinSourceSet.extras: MutableExtras get() = this.internal.extras
 
 @ExternalKotlinTargetApi
-val KotlinTarget.extras: MutableExtras get() = this.internal.extras
\ No newline at end of file
+val KotlinCompilation<*>.extras: MutableExtras get() = this.internal.extras
+
+@ExternalKotlinTargetApi
+val KotlinTarget.extras: MutableExtras get() = this.internal.extras