diff --git a/util/diff_asm.go b/util/diff_asm.go
index 0a0888b0..bc9363f9 100644
--- a/util/diff_asm.go
+++ b/util/diff_asm.go
@@ -31,7 +31,7 @@ var (
 
 func mapName(path string) string {
 	switch filepath.ToSlash(path) {
-	case "crypto/rand/asm/rdrand-x86_64.pl":
+	case "crypto/cipher/asm/chacha20_poly1305_x86_64.pl", "crypto/rand/asm/rdrand-x86_64.pl":
 		return ""
 	case "crypto/ec/asm/p256-x86_64-asm.pl":
 		return filepath.FromSlash("crypto/ec/asm/ecp_nistz256-x86_64.pl")