diff --git a/src/commonMain/kotlin/com/infendro/hash/util/ByteArray.kt b/src/commonMain/kotlin/com/infendro/hash/util/ByteArray.kt
index 718f8d5..20fa7ff 100644
--- a/src/commonMain/kotlin/com/infendro/hash/util/ByteArray.kt
+++ b/src/commonMain/kotlin/com/infendro/hash/util/ByteArray.kt
@@ -5,8 +5,8 @@ import com.infendro.hash.util.ByteOrder.LITTLE_ENDIAN
 
 internal fun MutableCollection<Byte>.addAll(
     bytes: ByteArray,
-) {
-    addAll(bytes.toList())
+): Boolean {
+    return addAll(bytes.toList())
 }
 
 enum class ByteOrder {