Milking system with a positioning aid

A robot milking system, comprising:

• at least one milking box;
• milking means;
• a robot arm configured to connect the milking means to a milking animal;
• an animal recognition device configured to automatically determine an identity of the milking animal;
• a control system configured to control the robot milking system;
• and
• a positioning aid configured to determine a position of the milking animal in the at least one milking box,
• wherein:
• the positioning aid is movable by the control system between an inactive state away from the milking animal and an active state up against the milking animal,
• the positioning aid is in the active state at least when the milking means is connected to the milking animal,
• the control system is configured to bring the positioning aid into the active state as a function of the identity determined by the animal recognition device, and
• the control system is configured to bring the positioning aid into the active state for a predetermined number of visits or for a predetermined number of days.