diff --git a/test/QOExt.jl b/test/QOExt.jl
index 898b07a9..ab17eb91 100644
--- a/test/QOExt.jl
+++ b/test/QOExt.jl
@@ -14,13 +14,13 @@ kT = 0.5
 N  = 2
 Q = σz  # System-bath coupling operator
 bath = Boson_DrudeLorentz_Pade(Q, λ, W, kT, N)
+L = M_Boson(Hsys, tier, bath; verbose=false)
 
 # SteadyState
 ados = SteadyState(L, ρ0; verbose=false)
 
 # Evolution
 tier = 5
-L = M_Boson(Hsys, tier, bath; verbose=false)
 O = I2 + 0.5 * σx
 Δt    = 10
 steps = 1