This paper investigates the sociolinguistic effects and issues of identity in Metsovo, Greece, that have been the result of the presence of about 100 Albanian families who arrived there as economic migrants in the 1990s. The village of Metsovo is largely bilingual in Greek and Vlach (Aromanian). The migrants from Albania are either Muslims, (originally) monolingual in Albanian, or Christian Orthodox, bilingual in Albanian and Vlach. The presence of Vlach-speaking Albanians influences the use of Vlach by the original population. This case illustrates how the need for communication through a common code with the local population creates conditions which favour the use of a language otherwise being increasingly abandoned, and changes, at least in the short term, the attitudes towards a language that until recently has been considered dying.