Biblio: don't add footnote if empty.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/Text/Pandoc/Biblio.hs b/src/Text/Pandoc/Biblio.hs
index bca24d815..05cc296c1 100644
--- a/src/Text/Pandoc/Biblio.hs
+++ b/src/Text/Pandoc/Biblio.hs
@@ -65,11 +65,11 @@ processCite s cs (i:is)
     | Cite t _ <- i = process t ++ processCite s cs is
     | otherwise     = i          : processCite s cs is
     where
+      addNt t x = if null x then [] else [Cite t $ renderPandoc s x]
       process t = case M.lookup t cs of
                     Just  x -> if isTextualCitation t && x /= []
-                               then renderPandoc s [head x] ++ [Space] ++
-                                    [Cite t $ renderPandoc s $ tail x]
-                               else [Cite t $ renderPandoc s        x]
+                               then renderPandoc s [head x] ++ [Space] ++ addNt t (tail x)
+                               else [Cite t $ renderPandoc s x]
                     Nothing -> [Str ("Error processing " ++ show t)]
 
 isTextualCitation :: [Citation] -> Bool