diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
index ca933f25362..c2530b21035 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
@@ -1654,7 +1654,8 @@ object ArrayOps : TemplateGroupBase() {
                 on(Backend.Wasm) {
                     body {
                         """
-                        for (index in fromIndex..toIndex) {
+                        AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+                        for (index in fromIndex until toIndex) {
                             this[index] = element    
                         }
                         """