diff --git a/app/models/statistics/prizes.rb b/app/models/statistics/prizes.rb
index 39c8b7ca4..b78497e6c 100644
--- a/app/models/statistics/prizes.rb
+++ b/app/models/statistics/prizes.rb
@@ -10,7 +10,7 @@ def initialize(month)
   end
 
   def current_month
-    @current_month ||= @month.beginning_of_month .. @month.end_of_month
+    @current_month ||= @month.beginning_of_month .. @month.next_month.beginning_of_month
   end
 
   def best_score(type, nb)