Forgot to pointer it

main.go

@@ -24,7 +24,7 @@ type OAuthResponse struct {
 type File struct {
 	Name   string            `validate:"required"`
 	User   uuid.UUID         `validate:"required"`
-	Reader io.LimitedReader // Only used for write operations
+	Reader *io.LimitedReader // Only used for write operations
 }
 
 type Quota struct {