diff --git a/internal/model/models.go b/internal/model/models.go
index 1a549b6..f75e0c2 100644
--- a/internal/model/models.go
+++ b/internal/model/models.go
@@ -138,7 +138,7 @@ type User struct {
 	DisplayName  string     `db:"display_name"  json:"display_name"`
 	PasswordHash string     `db:"password_hash" json:"-"`
 	Role         string     `db:"role"          json:"role"`
-	AvatarURL    string     `db:"avatar_url"    json:"avatar_url,omitempty"`
+	AvatarURL    *string    `db:"avatar_url"    json:"avatar_url,omitempty"`
 	Active       bool       `db:"active"        json:"active"`
 	LastLogin    *time.Time `db:"last_login"    json:"last_login"`
 	CreatedAt    time.Time  `db:"created_at"    json:"created_at"`