diff --git a/src/low/x64-asm-6l/relic_bn_mul_low.c b/src/low/x64-asm-6l/relic_bn_mul_low.c
index 61c95211d..c43f15da2 100644
--- a/src/low/x64-asm-6l/relic_bn_mul_low.c
+++ b/src/low/x64-asm-6l/relic_bn_mul_low.c
@@ -57,15 +57,4 @@ void bn_muld_low(dig_t *c, const dig_t *a, size_t sa, const dig_t *b, size_t sb,
 	(void)low;
 	(void)high;
 	mpn_mul(c, a, sa, b, sb);
-}
-
-dig_t bn_negs_low(dig_t *c, const dig_t *a, dig_t sa, size_t size) {
-    dig_t carry = sa & 1;
-
-	sa = -sa;
-    for (size_t i = 0; i < size; i++) {
-        c[i] = (a[i] ^ sa) + carry;
-		carry = (c[i] < carry);
-    }
-	return carry;
 }
\ No newline at end of file