diff --git a/sm2/p256_asm_table.go b/sm2/p256_asm_table.go
index 0d25dcf..173eeb6 100644
--- a/sm2/p256_asm_table.go
+++ b/sm2/p256_asm_table.go
@@ -1,6 +1,7 @@
 // Generated by gen_p256_table.go. DO NOT EDIT.
 //go:build amd64
 // +build amd64
+
 package sm2
 
 const p256Precomputed = "" +