diff --git a/crypto/bn256/cloudflare/gfp12.go b/crypto/bn256/cloudflare/gfp12.go
index 295a1d6c4b..b236daefbd 100644
--- a/crypto/bn256/cloudflare/gfp12.go
+++ b/crypto/bn256/cloudflare/gfp12.go
@@ -116,9 +116,8 @@ func (e *gfP12) Mul(a, b *gfP12) *gfP12 {
 }
 
 func (e *gfP12) MulScalar(a *gfP12, b *gfP6) *gfP12 {
-	e.x.Mul(&e.x, b)
-	e.y.Mul(&e.y, b)
-
+	e.x.Mul(&a.x, b)
+	e.y.Mul(&a.y, b)
 	return e
 }
 
diff --git a/crypto/bn256/google/gfp12.go b/crypto/bn256/google/gfp12.go
index 888ed5f920..7b81e09b58 100644
--- a/crypto/bn256/google/gfp12.go
+++ b/crypto/bn256/google/gfp12.go
@@ -135,9 +135,8 @@ func (e *gfP12) Mul(a, b *gfP12, pool *bnPool) *gfP12 {
 }
 
 func (e *gfP12) MulScalar(a *gfP12, b *gfP6, pool *bnPool) *gfP12 {
-	e.x.Mul(e.x, b, pool)
-	e.y.Mul(e.y, b, pool)
-
+	e.x.Mul(a.x, b, pool)
+	e.y.Mul(a.y, b, pool)
 	return e
 }