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-rw-r--r--src/Text/Pandoc/Readers/Roff.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Text/Pandoc/Readers/Roff.hs b/src/Text/Pandoc/Readers/Roff.hs
index 524801a08..da33651d2 100644
--- a/src/Text/Pandoc/Readers/Roff.hs
+++ b/src/Text/Pandoc/Readers/Roff.hs
@@ -613,7 +613,7 @@ checkDefined name = do
escString :: PandocMonad m => RoffLexer m [LinePart]
escString = try $ do
pos <- getPosition
- (do cs <- escapeArg <|> count 1 alphaNum
+ (do cs <- escapeArg <|> count 1 anyChar
resolveString cs pos)
<|> mempty <$ char 'S'