The relationship involving the unknown other has so far been exclusively translated into the language of fear as part of the securitised response to migration. The fear of the unknown other divides people into those who are associated with illegality and chaos and those who need to be protected from such ‘danger’. In contrast, the humanitarian approach to migration challenges the securitised response to the unknown other: it refuses to separate the self from the other and instead appeals to the idea of common humanity. This paper draws on the idea of the gothic to develop a humanitarian way of embracing the fear of the unknown. In the gothic framework, the other is feared not because of categorical differences between the self and the other, embodied in the securitised response to migration, but categorical ambiguity between the two. Using UK-based welcome activism as an example, I argue that gothic-inspired humanitarianism embraces the fear of the unknown other through the sharing of not knowing oneself. This offers a new basis for solidarity, in the language of fear, without resorting to the securitised relationship between the self and the other.