diff --git a/libraries/stdlib/native-wasm/src/kotlin/collections/ArrayList.kt b/libraries/stdlib/native-wasm/src/kotlin/collections/ArrayList.kt
index 047b72ae172..82b6debfe6e 100644
--- a/libraries/stdlib/native-wasm/src/kotlin/collections/ArrayList.kt
+++ b/libraries/stdlib/native-wasm/src/kotlin/collections/ArrayList.kt
@@ -167,8 +167,8 @@ actual class ArrayList<E> private constructor(
 
     final actual fun ensureCapacity(minCapacity: Int) {
         if (backingList != null) throw IllegalStateException() // just in case somebody casts subList to ArrayList
-        registerModification()
         if (minCapacity <= backingArray.size) return
+        registerModification()
         ensureCapacityInternal(minCapacity)
     }
 
diff --git a/libraries/stdlib/test/collections/ConcurrentModificationTest.kt b/libraries/stdlib/test/collections/ConcurrentModificationTest.kt
index ec33bfeafa0..252cf843777 100644
--- a/libraries/stdlib/test/collections/ConcurrentModificationTest.kt
+++ b/libraries/stdlib/test/collections/ConcurrentModificationTest.kt
@@ -139,8 +139,6 @@ class ConcurrentModificationTest {
         val operations = listOf<CollectionOperation<ArrayList<String>>>(
             CollectionOperation("trimToSize()") { trimToSize() },
             CollectionOperation("ensureCapacity(minCapacity > capacity)") { ensureCapacity(100) },
-            CollectionOperation("ensureCapacity(minCapacity < capacity)") { ensureCapacity(1) },
-            CollectionOperation("ensureCapacity(minCapacity == size)") { ensureCapacity(size) },
         )
 
         fun testThrowsCME(withArrayList: WithCollection<ArrayList<String>>) {