diff --git a/lib/mapper.js b/lib/mapper.js
index a12889c..8deb73a 100644
--- a/lib/mapper.js
+++ b/lib/mapper.js
@@ -45,6 +45,7 @@ const workoutsTypes = {
   HKWorkoutActivityTypeBowling: 'bowling',
   HKWorkoutActivityTypeBoxing: 'boxing',
   HKWorkoutActivityTypeClimbing: 'climbing',
+  HKWorkoutActivityTypeCooldown: 'cooldown',
   HKWorkoutActivityTypeCoreTraining: 'core',
   HKWorkoutActivityTypeCricket: 'cricket',
   HKWorkoutActivityTypeCrossCountrySkiing: 'cross-country-skiing',