diff --git a/libraries/stdlib/wasm/src/kotlin/collections/CollectionsWasm.kt b/libraries/stdlib/wasm/src/kotlin/collections/CollectionsWasm.kt
index 3267a0d11d4..a371cc2b956 100644
--- a/libraries/stdlib/wasm/src/kotlin/collections/CollectionsWasm.kt
+++ b/libraries/stdlib/wasm/src/kotlin/collections/CollectionsWasm.kt
@@ -8,7 +8,7 @@ package kotlin.collections
 /**
  * Replaces each element in the list with a result of a transformation specified.
  */
-public fun <T> MutableList<T>.replaceAll(transformation: (T) -> T) {
+internal fun <T> MutableList<T>.replaceAll(transformation: (T) -> T) {
     val it = listIterator()
     while (it.hasNext()) {
         val element = it.next()