diff --git a/crypto/bn256/cloudflare/optate.go b/crypto/bn256/cloudflare/optate.go
index e8caa7a086..b71e50e3a2 100644
--- a/crypto/bn256/cloudflare/optate.go
+++ b/crypto/bn256/cloudflare/optate.go
@@ -199,8 +199,9 @@ func miller(q *twistPoint, p *curvePoint) *gfP12 {
 	r = newR
 
 	r2.Square(&minusQ2.y)
-	a, b, c, _ = lineFunctionAdd(r, minusQ2, bAffine, r2)
+	a, b, c, newR = lineFunctionAdd(r, minusQ2, bAffine, r2)
 	mulLine(ret, a, b, c)
+	r = newR
 
 	return ret
 }