The paper is devoted to the influence which Russian as a dominant language exerts on Beserman dialect of Udmurt. Analysis is based on a corpus of dialogues recorded and transcribed in Shamardan (a Beserman village in Udmurtia, Russian Federation). It is shown that Russian influence in forms of codemixing and borrowing can be seen at all language levels: phonetics, inflectional morphology, vocabulary, syntax, discourse. It is stated that the changes could result in a mixed idiom, but the dialect is likely to die because it is not passed to next generations anymore.