A holder for a camera module includes first and second surfaces, an optical filter receiving groove is recessed from the first surface to the second surface to form a step portion and a glue receiving portions extend from angled abutments of the step portion. A sensor receiving groove is recessed from the second surface to the first surface, and the sensor receiving groove communicates with the optical filter receiving groove. At least one escape passage is defined in the holder, the at least one escape passage communicates with the optical filter receiving groove and the sensor receiving groove. The at least one escape passage abuts the glue receiving portions and provides an escape path for captured moisture and gases expanding or shrinking because of temperature variations.