diff --git a/compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibrary.kt b/compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibrary.kt
index 2ba77037743..1b6ea0eed0e 100644
--- a/compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibrary.kt
+++ b/compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibrary.kt
@@ -109,6 +109,9 @@ val KotlinLibrary.containsErrorCode: Boolean
 val KotlinLibrary.commonizerTarget: String?
     get() = manifestProperties.getProperty(KLIB_PROPERTY_COMMONIZER_TARGET)
 
+val KotlinLibrary.builtInsPlatform: String?
+    get() = manifestProperties.getProperty(KLIB_PROPERTY_BUILTINS_PLATFORM)
+
 val BaseKotlinLibrary.commonizerNativeTargets: List<String>?
     get() = if (manifestProperties.containsKey(KLIB_PROPERTY_COMMONIZER_NATIVE_TARGETS))
         manifestProperties.propertyList(KLIB_PROPERTY_COMMONIZER_NATIVE_TARGETS, escapeInQuotes = true)