diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/core/AbstractListCommonizer.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/core/AbstractListCommonizer.kt
index fb9df4da730..c75a20a5d95 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/core/AbstractListCommonizer.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/core/AbstractListCommonizer.kt
@@ -16,9 +16,9 @@ import org.jetbrains.kotlin.descriptors.commonizer.cir.CirType
  *   Output: list of [CirType]
  */
 abstract class AbstractListCommonizer<T, R>(
-    private val singleElementCommonizerFactory: () -> Commonizer<T, R>
+    private val singleElementCommonizerFactory: (Int) -> Commonizer<T, R>
 ) : Commonizer<List<T>, List<R>> {
-    private var commonizers: List<Commonizer<T, R>>? = null
+    private var commonizers: Array<Commonizer<T, R>>? = null
     private var error = false
 
     final override val result: List<R>
@@ -29,10 +29,8 @@ abstract class AbstractListCommonizer<T, R>(
             return false
 
         val commonizers = commonizers
-            ?: mutableListOf<Commonizer<T, R>>().apply {
-                repeat(next.size) {
-                    this += singleElementCommonizerFactory()
-                }
+            ?: Array(next.size) { index ->
+                singleElementCommonizerFactory(index)
             }.also {
                 this.commonizers = it
             }