diff --git a/src/main/java/com/rabbitmq/stream/impl/Client.java b/src/main/java/com/rabbitmq/stream/impl/Client.java
index 86fa36a654..83e678ebc7 100644
--- a/src/main/java/com/rabbitmq/stream/impl/Client.java
+++ b/src/main/java/com/rabbitmq/stream/impl/Client.java
@@ -752,7 +752,7 @@ private static int collectionSize(Collection<String> elements) {
   }
 
   private static int arraySize(String... elements) {
-    return 4 + collectionSize(asList(elements));
+    return collectionSize(asList(elements));
   }
 
   private static int mapSize(Map<String, String> elements) {