From 30962e2e9da335a436fce0fe6ba417adbebdeee0 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Mon, 3 Feb 2020 20:38:49 -0800
Subject: [PATCH] Allow & in LaTeX citation keys.

Closes #6110.
---
 src/Text/Pandoc/Readers/LaTeX.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Text/Pandoc/Readers/LaTeX.hs b/src/Text/Pandoc/Readers/LaTeX.hs
index 27d166f63..b11a04f3b 100644
--- a/src/Text/Pandoc/Readers/LaTeX.hs
+++ b/src/Text/Pandoc/Readers/LaTeX.hs
@@ -696,7 +696,7 @@ citationLabel  = do
           <* optional spaces
           <* optional (symbol ',')
           <* optional spaces)
-  where bibtexKeyChar = ".:;?!`'()/*@_+=-[]" :: [Char]
+  where bibtexKeyChar = ".:;?!`'()/*@_+=-&[]" :: [Char]
 
 cites :: PandocMonad m => CitationMode -> Bool -> LP m [Citation]
 cites mode multi = try $ do