diff --git a/rails_root/.simplecov b/rails_root/.simplecov
index d3fd032..7524334 100644
--- a/rails_root/.simplecov
+++ b/rails_root/.simplecov
@@ -2,4 +2,7 @@
 
 SimpleCov.start 'rails' do
   enable_coverage :branch # see https://github.com/colszowka/simplecov#branch-coverage-ruby--25
+  add_filter '/app/jobs/'
+  add_filter '/app/mailers/'
+  add_filter '/app/channels/'
 end