diff --git a/privmx-endpoint-extra/src/main/java/com/simplito/java/privmx_endpoint_extra/inboxFileStream/InboxFileStreamWriter.java b/privmx-endpoint-extra/src/main/java/com/simplito/java/privmx_endpoint_extra/inboxFileStream/InboxFileStreamWriter.java
index 7cc4bf7..82846d3 100644
--- a/privmx-endpoint-extra/src/main/java/com/simplito/java/privmx_endpoint_extra/inboxFileStream/InboxFileStreamWriter.java
+++ b/privmx-endpoint-extra/src/main/java/com/simplito/java/privmx_endpoint_extra/inboxFileStream/InboxFileStreamWriter.java
@@ -82,14 +82,14 @@ public void writeStream(long inboxHandle, InputStream inputStream, StoreFileStre
         if (streamController != null) {
             setProgressListener(streamController);
         }
-        byte[] chunk = new byte[(int) StoreFileStream.OPTIMAL_SEND_SIZE];
+        byte[] chunk = new byte[(int) InboxFileStream.OPTIMAL_SEND_SIZE];
         int readed;
         while (true) {
             if (streamController != null && streamController.isStopped()) {
-                break;
+                return;
             }
             if ((readed = inputStream.read(chunk)) <= 0) {
-                break;
+                return;
             }
             write(inboxHandle, Arrays.copyOf(chunk, readed));
         }