diff --git a/manifests/Mattermost/MattermostDesktop/4.5.1.yaml b/manifests/Mattermost/MattermostDesktop/4.5.1.yaml
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index 000000000..f97adf0fe
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+Id: Mattermost.MattermostDesktop
+Version: 4.5.1
+Name: Mattermost Desktop
+AppMoniker: mattermost
+Publisher: Mattermost
+License: Copyright (c) 2016-present Mattermost, Inc.
+LicenseUrl: https://github.com/mattermost/desktop/blob/master/LICENSE.txt
+Tags: chat, collaboration, irc, work, teams
+Description: Mattermost Desktop application for Windows
+Homepage: https://mattermost.com/
+Installers:
+  - Arch: x64
+    Url: https://releases.mattermost.com/desktop/4.5.1/mattermost-desktop-4.5.1-x64.msi
+    Sha256: 72094cb51be65b37a0ab385b02c82e1b2a5f3eab0877a98460f0975dbbbc26c2
+    InstallerType: msi