diff --git a/test/Pb208.jl b/test/Pb208.jl
index e493195..442bb53 100644
--- a/test/Pb208.jl
+++ b/test/Pb208.jl
@@ -1,5 +1,10 @@
 include("../NuclearRMF.jl")
 
-s = system(82, 126, 20.0, 400)
+Z = 82
+N = 126
+r_max = 20.0
+divs = 400
+
+s = system(Z, N, r_max, divs)
 
 solve_system(s; monitor_plot=true)