diff --git a/gui/preload-chat.js b/gui/preload-chat.js
index 7d02b496..89fd926c 100644
--- a/gui/preload-chat.js
+++ b/gui/preload-chat.js
@@ -1945,6 +1945,7 @@ add_obj_to_database = function (obj) {
     status: obj.status,
     snr: obj.snr,
     attempt: obj.attempt,
+    hmac_signed: obj.hmac_signed,
     new: obj.new,
     _attachments: {
       [obj.filename]: {
diff --git a/tnc/static.py b/tnc/static.py
index 57d481a2..05b8819e 100644
--- a/tnc/static.py
+++ b/tnc/static.py
@@ -129,7 +129,7 @@ class TCIParam:
 
 @dataclass 
 class TNC:
-    version = "0.10.3-alpha.1-hmac-exp3"
+    version = "0.10.3-alpha.1-hmac-exp4"
     host: str = "0.0.0.0"
     port: int = 3000
     SOCKET_TIMEOUT: int = 1  # seconds