Infrahumanisation studies have shown that people use the ability to experience secondary emotions, compared to primary emotions, as a characteristic that discriminates outgroups. This result has been widely supported in an extensive range of research work. However, we still do not know if under certain conditions this tendency is mitigated. The aim of this study is twofold. On the one hand, to determine whether a solidarity intergroup context results in a more human representation of outgroups, and on the other hand to verify if infrahumanisation bias is mitigated. For this purpose, three vignettes were elaborated. The first included a description of an outgroup, the German people, emphasising their laboriousness and charm. The second described them taking in refugees from the Balkan War. Finally, a text dealing with solidarity in general, without specific reference to the German people, was presented. In a two-step experimental design, first participants had to attribute secondary and primary emotions to the outgroup, and then answer a lexical decision task that registered the strength of association of secondary emotions with the ingroup and outgroup. The results show that the vignettes of intergroup solidarity contribute to humanising the representation of the outgroup and to reduce infrahumanisation bias.