Accidentally discovered over 40 years ago, the church of Oum Nir has since been excavated and documented but remains unpublished. Several of its mosaics have been cut out for preservation purposes and according to display requirements for the Ma᾽arret An-Nou᾽man Museum. Thanks to photographs taken at the time of the discovery, it is now possible to shed light on their initial position within the church; this new study thus allows us to reconstruct the layout of the decoration in its original architectural context.