diff --git a/halo2_proofs/src/poly/kzg/commitment.rs b/halo2_proofs/src/poly/kzg/commitment.rs
index 2eed21276d..c9157f843d 100644
--- a/halo2_proofs/src/poly/kzg/commitment.rs
+++ b/halo2_proofs/src/poly/kzg/commitment.rs
@@ -90,8 +90,8 @@ where
         let mut g_lagrange_projective = vec![E::G1::identity(); n as usize];
         let mut root = E::Scalar::ROOT_OF_UNITY;
         for _ in k..E::Scalar::S {
-             root = root.square();
-         }
+            root = root.square();
+        }
         let n_inv = E::Scalar::from(n)
             .invert()
             .expect("inversion should be ok for n = 1<<k");