Suggest edition command in section titles leads to errors

[MLopez-Ibanez]

./TEC_SI_Round1.tex:1041: Argument of \boolean has an extra }.
<inserted text> 
                \par 
l.1041 ...{\manuel{Discussions}{Further Analysis}}
Runaway argument?
./TEC_SI_Round1.tex:1041: Paragraph ended before \boolean was complete.
<to be read again> 
                   \par