diff --git a/Documentation/bluetooth/file-transfer.rst b/Documentation/bluetooth/file-transfer.rst
index 439237b883ea69a2655f30511612949c64ab4b95..49191d2da8f25e610d0ef9f96696b73692a2d74f 100644
--- a/Documentation/bluetooth/file-transfer.rst
+++ b/Documentation/bluetooth/file-transfer.rst
@@ -77,9 +77,11 @@ CHUNK_ACK:
 ===== ===
   0   1-4
 ----- ---
-  C   CRC
+  C   CRC(*)
 ===== ===
 
+CRC32 of the whole CHUNK packet including first byte, offset and payload.
+
 FINISH:
 
 === ===