diff --git a/doc/bugs.mdwn b/doc/bugs.mdwn
index bf4ffb53c..a8e9ae679 100644
--- a/doc/bugs.mdwn
+++ b/doc/bugs.mdwn
@@ -33,3 +33,6 @@
   underlaydir gets a mtime newer than the mtime the removed file had.
 * ikiwiki will generate html formatted error messages to the command
   line if --cgi is set, even if it's not yet running as a cgi
+* if a page containing an rss feed happens to show up in an rss feed,
+  the preprocessor directives won't be expanded (good) but are left in
+  raw rather than removed (bad)