diff --git a/test/lattices.jl b/test/lattices.jl
index 051ec67f..185f46ad 100644
--- a/test/lattices.jl
+++ b/test/lattices.jl
@@ -13,7 +13,9 @@ using Test
         @test flat ≈ conventionalize(flat′, cntr)
     end
 
-    # convert-to-integer bug found by Ali
+    # convert-to-integer bug found by Ali (conversion to integer-vectors bugged for 
+    # ntuple(_->i, Val(3)) with i > 1)
+    sgnum = 146
     flat = levelsetlattice(sgnum, Val(3), ntuple(_->2, Val(3)))
     @test primitivize(flat, centering(sgnum)) isa UnityFourierLattice{3} # = doesn't throw
 end
\ No newline at end of file