diff --git a/go/gmssl/certificate.go b/go/gmssl/certificate.go
index 41b56ef3..2e971838 100644
--- a/go/gmssl/certificate.go
+++ b/go/gmssl/certificate.go
@@ -58,6 +58,7 @@ package gmssl
 #include <openssl/bio.h>
 #include <openssl/evp.h>
 #include <openssl/pem.h>
+#include <openssl/x509.h>
 #include <openssl/engine.h>
 #include <openssl/objects.h>
 #include <openssl/opensslconf.h>
@@ -69,8 +70,8 @@ import "C"
 
 import (
 	"fmt"
-	"unsafe"
 	"runtime"
+	"unsafe"
 )
 
 type Certificate struct {
diff --git a/go/gmssl/sm3/sm3.go b/go/gmssl/sm3/sm3.go
index 31bf00eb..cf295a95 100644
--- a/go/gmssl/sm3/sm3.go
+++ b/go/gmssl/sm3/sm3.go
@@ -49,8 +49,9 @@
 package sm3
 
 import (
-	"gmssl"
 	"hash"
+
+	"github.com/guanzhi/GmSSL/go/gmssl"
 )
 
 type digest struct {