diff --git a/bls12_377/src/fields/fq2.rs b/bls12_377/src/fields/fq2.rs
index fa479e1..60d3888 100644
--- a/bls12_377/src/fields/fq2.rs
+++ b/bls12_377/src/fields/fq2.rs
@@ -41,7 +41,7 @@ impl Fp2Config for Fq2Config {
         *y += x;
     }
 
-    fn mul_fp_by_nonresidue_in_place_and_add(y: &mut Self::Fp, x: &Self::Fp) {
+    fn mul_fp_by_nonresidue_and_add(y: &mut Self::Fp, x: &Self::Fp) {
         let mut original = *y;
         original.double_in_place().double_in_place();
         original += &*y;
diff --git a/bls12_381/src/fields/fq2.rs b/bls12_381/src/fields/fq2.rs
index 34f0f6c..7f13919 100644
--- a/bls12_381/src/fields/fq2.rs
+++ b/bls12_381/src/fields/fq2.rs
@@ -35,7 +35,7 @@ impl Fp2Config for Fq2Config {
         *y = *x;
     }
 
-    fn mul_fp_by_nonresidue_in_place_and_add(y: &mut Self::Fp, x: &Self::Fp) {
+    fn mul_fp_by_nonresidue_and_add(y: &mut Self::Fp, x: &Self::Fp) {
         y.neg_in_place();
         *y += x;
     }