diff --git a/doc/bugs/youtube_web_download_gives_Prelude.undefined_in_webapp.mdwn b/doc/bugs/youtube_web_download_gives_Prelude.undefined_in_webapp.mdwn
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+### Please describe the problem.
+
+I'm downloading a video with 'git annex addurl' from youtube. The webapp shows the transfer, but when I click the 'web' link it takes me to a page that says "internal server error" and "Prelude.undefined"
+
+### What steps will reproduce the problem?
+
+1. start webapp
+2. download youtube video
+3. click 'web' link on transfer in git-annex
+
+### What version of git-annex are you using? On what operating system?
+
+* Version: 5.20140717
+* OS: Debian sid
+
+### Please provide any additional information below.
+
+Not much in the logs, I see this:
+
+[[!format sh """
+
+[2014-07-25 08:40:14 BST] TransferWatcher: transfer starting: Download UUID "00000000-0000-0000-0000-000000000001" URL--quvi:https://www.youtube.com/watch,63v,61Z8_8jNLsZms Nothing
+[2014-07-25 08:40:14 BST] TransferWatcher: transfer starting: Download UUID "00000000-0000-0000-0000-000000000001" Chase_Adam_at_Startup_School_NY_2014.mp4 Nothing
+
+"""]]