This article, published in the most recent issue of the journal Phonology, presents a case of consonants assimilating for place features across long distances. Vowels are well-known to assimilate across long distances (i.e. vowel harmony), and our understanding of consonant harmony has increased recently to include many types of long-distance assimilation as well. Yet, processes involving features for place of articulation were unreported to this point. This type of process occurs in Ngbaka, spoken primarily in the Democratic Republic of the Congo, and crucially involves doubly-articulated labial-velar stops—segments with multiple place features.