diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28b8ae100..35b68e6d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog Fab Manager
 
+## next release
+
+- Fix a bug: on some linux hosts, a filename too long error is triggered when accessing the trainings API 
+
 ## v2.5.9 2017 July 13
 
 - Fixed invalid syntax for configuration file application.yml.default
diff --git a/app/views/api/trainings/index.json.jbuilder b/app/views/api/trainings/index.json.jbuilder
index 51550ce1b..9e78e0f3b 100644
--- a/app/views/api/trainings/index.json.jbuilder
+++ b/app/views/api/trainings/index.json.jbuilder
@@ -1,9 +1,7 @@
 role = (current_user and current_user.is_admin?) ? 'admin' : 'user'
 
-json.cache! [@trainings, role] do
-  json.array!(@trainings) do |training|
-    json.extract! training, :id, :name, :description, :machine_ids, :nb_total_places, :slug
-    json.training_image training.training_image.attachment.large.url if training.training_image
-    json.plan_ids training.plan_ids if role === 'admin'
-  end
+json.array!(@trainings) do |training|
+  json.extract! training, :id, :name, :description, :machine_ids, :nb_total_places, :slug
+  json.training_image training.training_image.attachment.large.url if training.training_image
+  json.plan_ids training.plan_ids if role === 'admin'
 end