diff --git a/OrbitDecomposition.jl b/OrbitDecomposition.jl
index 6a43211..35ecec8 100644
--- a/OrbitDecomposition.jl
+++ b/OrbitDecomposition.jl
@@ -163,6 +163,11 @@ function compute_orbit_data{T<:GroupElem}(logger, name::String, G::Group, S::Vec
 
    info(logger, "Generating ball of radius 4")
    @time E4, sizes = Groups.generate_balls(S, G(), radius=2*radius);
+   if isa(G, Nemo.Ring)
+      Id = one(G)
+   else
+      Id = G()
+   end
    info(logger, "Reverse dict")
    @time E_dict = GroupRings.reverse_dict(E4)