In this study, we describe the performance of 62 newly immigrated children to France at a nonword repetition task (LITMUS-QU-NWR-FR) designed to evaluate bilingual children’s syllable structure. Children were between 6;0 and 9;1 and had diverse language backgrounds. They participated in our study during their first year of exposure to French. The majority of our children exhibited a good performance on the task. The variation observed is related to: (i) the properties of the nonwords: items with complex syllables are more difficult, as are items with three syllables in length; (ii) phonological awareness: children with a more developed L2 phonological awareness perform better at the task; and (iii) receptive vocabulary size: children with a larger L2 vocabulary size perform better at the task. Overall, our findings provide support for the argument that the LITMUS-QU-NWR-FR task can be used shortly after the onset of exposure to the L2.