diff --git a/src/config/config.js b/src/config/config.js
index 404e7298..bb644fa4 100644
--- a/src/config/config.js
+++ b/src/config/config.js
@@ -75,7 +75,7 @@ export default {
    * @memberof module:config
    * @property {Integer} aead_chunk_size_byte
    */
-  aead_chunk_size_byte:     46,
+  aead_chunk_size_byte:     12,
   /**
    * {@link https://tools.ietf.org/html/rfc4880#section-3.7.1.3|RFC4880 3.7.1.3}:
    * Iteration Count Byte for S2K (String to Key)