@@ -1559,10 +1559,11 @@ newcommand = do
15591559 case mtype of
15601560 "DeclareMathOperator" ->
15611561 Tok pos (CtrlSeq "mathop") "\\mathop"
1562+ : Tok pos Symbol "{"
15621563 : Tok pos (CtrlSeq "mathrm") "\\mathrm"
15631564 : Tok pos Symbol "{"
15641565 : (contents' ++
1565− [ Tok pos Symbol "}" ])
1566+ [ Tok pos Symbol "}", Tok pos Symbol "}" ])
15661567 _ -> contents'
15671568 when (mtype == "newcommand") $ do
15681569 macros <- sMacros <$> getState