diff --git a/constant.go b/constant.go
index ee9a337..70a6ca3 100644
--- a/constant.go
+++ b/constant.go
@@ -11,3 +11,9 @@ var Buckets = struct {
 var listBuckets = []string{
 	Buckets.HelpCenter,
 }
+
+var ListTypes = struct {
+	Video string
+}{
+	Video: "video",
+}
diff --git a/presigned_url.go b/presigned_url.go
index 71b7d4f..7cb699c 100644
--- a/presigned_url.go
+++ b/presigned_url.go
@@ -4,10 +4,11 @@ import (
 	"context"
 	"fmt"
 	"net/url"
+	"strings"
 	"time"
 )
 
-func (c Client) GetPresignedURL(ctx context.Context, bucket, object string, expiry time.Duration) string {
+func (c Client) GetPresignedURL(ctx context.Context, bucket, object, fileType string, expiry time.Duration) string {
 	// default 15 min
 	if expiry == 0 {
 		expiry = 15 * time.Minute
@@ -17,6 +18,12 @@ func (c Client) GetPresignedURL(ctx context.Context, bucket, object string, expi
 	reqParams := make(url.Values)
 	reqParams.Set("response-content-disposition", fmt.Sprintf("attachment; filename=\"%s\"", object))
 
+	// add content type for video
+	if fileType == ListTypes.Video {
+		parts := strings.Split(object, ".")[1]
+		reqParams.Set("response-content-type", fmt.Sprintf("video/%s", parts[len(parts)-1]))
+	}
+
 	// get
 	presignedURL, err := c.client.PresignedGetObject(ctx, bucket, object, expiry, reqParams)
 	if err != nil {