diff --git a/repo.go b/repo.go
index b31cd09..ab53a8a 100644
--- a/repo.go
+++ b/repo.go
@@ -64,7 +64,7 @@ func (c *Client) ListOrgRepos(org string) ([]*Repository, error) {
 
 type CreateRepoOption struct {
 	Name        string `json:"name" binding:"Required;AlphaDashDot;MaxSize(100)"`
-	Description string `json:"description" binding:"MaxSize(255)"`
+	Description string `json:"description" binding:"MaxSize(512)"`
 	Private     bool   `json:"private"`
 	Unlisted    bool   `json:"unlisted"`
 	AutoInit    bool   `json:"auto_init"`