A decoy reel attachment for suspending a weight from a floating decoy to help keep the decoy upright in the water. The decoy reel attachment includes a casing with a base wall and a perimeter side wall extending around the base wall of the casing to define an interior space of the casing. A spool is rotatably mounted in the interior space of the casing. A holding sleeve is outwardly extended from the perimeter side wall of the casing. A elongate flexible line is wrapped around the spool. The flexible line has an outer free end outwardly extending from the spool through a slot in the perimeter side wall into the lumen of the holding sleeve. The outer free end of the flexible line is coupled to a weight that is insertable into the holding sleeve.