This article deals with the current debate on the use of English as the only medium of instruction in contexts where it is a second or foreign language. More specifically, it investigates Rwandan students’ reflections on using English as the sole medium of instruction in their everyday higher education academic activities. The study is mainly based on individual interviews from students at a University in Rwanda, where the language in education policy has changed considerably over the last decade. The findings suggest that students face different challenges and difficulties in using the newly adopted language of learning and teaching. They are, however, aware of the globalisation process and dissolution of national boundaries and are willing to upgrade their English in order to cope with the new academic situation