After Paris attacks in 2015, the image projected by the Muslim minority is very negative. The objective of this study is to analyze the discursive construction of the collective ethos of the Muslim minority in France, through the speeches in media. Our corpus consists of a group of digital texts (articles, blogs, forums, social media, etc.) Our search is at the crossroads of two disciplines: argumentation and discourse analysis. Our analysis proceeds in four steps: first, we present the impact of Paris attacks on the Muslim minority. Then, we study the preliminary ethos of Muslims as it is constructed in the media. Afterwards, we analyze the collective ethos self-attributed, presented by Muslims in response to their negative ethos. Finally, we study the arguments they advance to rework this negative preliminary ethos.