An unsuccessful military coup d’etat took place in Turkey in 2016. The government in Ankara recognized a representatives of Hizmet Movement guilty of carrying it out. In retaliation they has begun actions to bring them to the court and at the same time criminalize an activity of their organization in Turkey. Ankara government demanded also the limitation of the functioning Hizmet supporters abroad. On the other hand, the key is the fact, that all the activities of Hizmet Movements all around the world has been a part of Turkish public diplomacy. So the ban of an activities of the organization abroad would affect both the Hizmet Movement and Turkish state. The article contains an explanations of the origin of the Hizmet Movement and it forms of activities, especially in Poland. There are also pointed out the possible consequences that the government in Ankara may face in the field of public diplomacy underestimating the role of this non-governmental organization which also had shaped the image of Turkey.