diff --git a/AUTHORS.md b/AUTHORS.md
index d3673e27de..c550821711 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -215,6 +215,7 @@ LibreNMS contributors:
 - Pavle Obradovic <pobradovic08@gmail.com> (pobradovic08)
 - Jason Cheng <sanyu3u@gmail.com> (jasoncheng7115)
 - Daniel Baeza <doctoruve@gmail.com> (TheGreatDoc)
+- Thom Cleary <me@thomcat.rocks> (thomcatdotrocks)
 
 Observium was written by:
 - Adam Armstrong
diff --git a/LibreNMS/Alert/Transport/Matrix.php b/LibreNMS/Alert/Transport/Matrix.php
index f6b2c220c3..2fea77c0a6 100644
--- a/LibreNMS/Alert/Transport/Matrix.php
+++ b/LibreNMS/Alert/Transport/Matrix.php
@@ -43,9 +43,10 @@ class Matrix extends Transport
     {
         $request_opts = [];
         $request_heads = [];
+        $txnid = rand(1111, 9999) . time();
 
         $server = preg_replace('/\/$/', '', $server);
-        $host = $server."/_matrix/client/r0/rooms/".urlencode($room)."/send/m.room.message/".$obj['uid'];
+        $host = $server."/_matrix/client/r0/rooms/".urlencode($room)."/send/m.room.message/".$txnid;
 
         $request_heads['Authorization'] = "Bearer $authtoken";
         $request_heads['Content-Type'] = "application/json";