diff --git a/src/Foundation.hs b/src/Foundation.hs
index d344ff6bd..539115750 100644
--- a/src/Foundation.hs
+++ b/src/Foundation.hs
@@ -617,6 +617,9 @@ pageHeading HomeR
   = Just [whamlet|_{MsgHomeHeading}|]
 pageHeading TermShowR
   = Just [whamlet|_{MsgTermsHeading}|]
+-- TODO: add headings for single course- and single term-pages
+-- pageHeading CourseR
+--   = Just ...
 pageHeading _
   = Nothing