diff --git a/src/models/perturbative_qed.jl b/src/models/perturbative_qed.jl
index dea949c..b24eaaa 100644
--- a/src/models/perturbative_qed.jl
+++ b/src/models/perturbative_qed.jl
@@ -25,4 +25,4 @@ end
 function Base.show(io::IO, ::MIME"text/plain", ::PerturbativeQED)
     print(io, "perturbative QED")
     return nothing
-end
\ No newline at end of file
+end