diff --git a/src/poly/domain.rs b/src/poly/domain.rs
index eb5ef9e..d4c8498 100644
--- a/src/poly/domain.rs
+++ b/src/poly/domain.rs
@@ -7,6 +7,7 @@ use super::{Coeff, ExtendedLagrangeCoeff, LagrangeCoeff, Polynomial, Rotation};
 
 use ff::{Field, PrimeField};
 use std::marker::PhantomData;
+
 /// This structure contains precomputed constants and other details needed for
 /// performing operations on an evaluation domain of size $2^k$ and an extended
 /// domain of size $2^{k} * j$ with $j \neq 0$.