diff --git a/fdroidserver/checkupdates.py b/fdroidserver/checkupdates.py
index 7f58e156..b617ea9a 100644
--- a/fdroidserver/checkupdates.py
+++ b/fdroidserver/checkupdates.py
@@ -388,6 +388,8 @@ def checkupdates_app(app, first=True):
     if mode.startswith('Tags'):
         pattern = mode[5:] if len(mode) > 4 else None
         (version, vercode, tag) = check_tags(app, pattern)
+        if version == 'Unknown':
+            version = tag
         msg = vercode
     elif mode == 'RepoManifest':
         (version, vercode) = check_repomanifest(app)