diff --git a/src/finitetemperature.jl b/src/finitetemperature.jl
index f4c4c5f..7fffabe 100644
--- a/src/finitetemperature.jl
+++ b/src/finitetemperature.jl
@@ -118,7 +118,7 @@ function chaincoeffs_finiteT(nummodes, β, ohmic=true; α=1, s=1, J=nothing, ωc
 end
 
 """
-    chaincoeffs_fermionic(nummodes, β, chain; ϵ=x, ωc=1, mc=4, mp=0, AB=nothing, iq=1, idelta=2, procedure=:Lanczos, Mmax=5000, save=true)
+ chaincoeffs_fermionic(nummodes, β, chain; ϵ=nothing, J=nothing, ωc=1, mc=4, mp=0, AB=nothing, iq=1, idelta=2, procedure=:Lanczos, Mmax=5000, save=true)
 
 Generate chain coefficients ``[[ϵ_0,ϵ_1,...],[t_0,t_1,...],c_0]`` for a fermionic bath at the inverse temperature β.
 
@@ -209,4 +209,4 @@ function chaincoeffs_fermionic(nummodes, β, chain; ϵ=nothing, J=nothing, ωc=1
     end
 
     return [jacerg[:,1], jacerg[1:N-1,2],jacerg[N,2]]
-end
\ No newline at end of file
+end