diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..3ddd057
Binary files /dev/null and b/.DS_Store differ
diff --git a/ho_basis_3body_wf.jl b/ho_basis_3body_wf.jl
index 4b7c7ba..67995ea 100644
--- a/ho_basis_3body_wf.jl
+++ b/ho_basis_3body_wf.jl
@@ -17,6 +17,7 @@ wf = real.(wf)
 
 h5open("temp/HO_3b.h5", "w") do fid
     write_attribute(fid, "E", E)
+    write_attribute(fid, "Λ", Λ)
     write_attribute(fid, "μ1ω1", μ1ω1)
     write_attribute(fid, "μ2ω2", μ2ω2)
     write_dataset(fid, "n1", n1s)