diff --git a/src/main/test_scalar.jl b/src/main/test_scalar.jl
index bcee6f3..9ad1304 100644
--- a/src/main/test_scalar.jl
+++ b/src/main/test_scalar.jl
@@ -52,8 +52,8 @@ ns  = 20
 println("## Thermalization")
 pl = Vector{Float64}()
 rho2_v = Vector{Float64}()
-lphi_v = Vector{Float64}()
-lalpha_v = Vector{Float64}()
+lphi_v = Vector{complex(Float64)}()
+lalpha_v = Vector{complex(Float64)}()
 
 for i in 1:10
     @time dh, acc = HMC!(U,Phi, dt,ns,lp, gp, sp, ymws, sws, noacc=true)