diff --git a/lib/fit4ruby/GlobalFitDictionaries.rb b/lib/fit4ruby/GlobalFitDictionaries.rb
index <HASH>..<HASH> 100644
--- a/lib/fit4ruby/GlobalFitDictionaries.rb
+++ b/lib/fit4ruby/GlobalFitDictionaries.rb
@@ -86,6 +86,7 @@ module Fit4Ruby
     entry 36, 'calibration'
     entry 37, 'vo2max' # guess
     entry 38, 'recovery_time' # guess (in minutes)
+    entry 39, 'recovery_info' # guess (in minutes, < 24 good, > 24h poor)
     entry 42, 'front_gear_change'
     entry 43, 'rear_gear_change'
Adding recovery_info. Just a guess right now.