Judgment unanimously affirmed. Memorandum: Defendant sought new counsel based on the conclusory assertion that counsel was not working for him. Because that assertion was insufficient to constitute good cause for a substitution (see, People v. Sides, 75 N.Y.2d 822, 825; see also, People v. Rodriguez, 166 A.D.2d 903, lv denied 77 N.Y.2d 910), County Court was not required to make further inquiry into defendant's request (see, People v Batista, 191 A.D.2d 317; People v. Jones, 182 A.D.2d 708, 709, lv denied 80 N.Y.2d 905).