-(define-condition simple-file-error (simple-condition file-error)())
-(define-condition simple-program-error (simple-condition program-error)())
-(define-condition simple-control-error (simple-condition control-error)())
+(define-condition simple-control-error (simple-condition control-error) ())
+(define-condition simple-file-error (simple-condition file-error) ())
+(define-condition simple-program-error (simple-condition program-error) ())
+(define-condition simple-stream-error (simple-condition stream-error) ())