@@ -364,11 +364,11 @@ data Element = Blk Block
364364
365365-- | Convert Pandoc inline list to plain text identifier. HTML
366366-- identifiers must start with a letter, and may contain only
367−-- letters, digits, and the characters _-:.
367+-- letters, digits, and the characters _-.
368368inlineListToIdentifier :: [Inline] -> String
369369inlineListToIdentifier =
370370 dropWhile (not . isAlpha) . intercalate "-" . words . map toLower .
371− filter (\c -> isLetter c || isDigit c || c `elem` "_-:. ") .
371+ filter (\c -> isLetter c || isDigit c || c `elem` "_-. ") .
372372 concatMap extractText
373373 where extractText x = case x of
374374 Str s -> s