diff --git a/config/deploy.rb b/config/deploy.rb
index 5c1c73ff3..f09c199f9 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -3,7 +3,7 @@ lock '3.4.0'
 
 def deploysecret(key)
   @deploy_secrets_yml ||= YAML.load_file('config/deploy-secrets.yml')[fetch(:stage).to_s]
-  @deploy_secrets_yml[key.to_s]
+  @deploy_secrets_yml.fetch(key.to_s, 'undefined')
 end
 
 
diff --git a/lib/capistrano/tasks/cache.cap b/lib/capistrano/tasks/cache.cap
new file mode 100644
index 000000000..ce5bf88a2
--- /dev/null
+++ b/lib/capistrano/tasks/cache.cap
@@ -0,0 +1,12 @@
+namespace :cache do
+  desc "clears the cache in the servers"
+  task :clear do
+    on roles(:app) do |role|
+      within release_path do
+        with rails_env: fetch(:rails_env) do
+          execute :rake, "cache:clear"
+        end
+      end
+    end
+  end
+end
diff --git a/lib/tasks/cache.rake b/lib/tasks/cache.rake
new file mode 100644
index 000000000..1d4b181d6
--- /dev/null
+++ b/lib/tasks/cache.rake
@@ -0,0 +1,6 @@
+namespace :cache do
+  desc "Clears memcached"
+  task clear: :environment do
+    Rails.cache.clear
+  end
+end