diff --git a/tests/environment.rb b/tests/environment.rb
index 3627c4af..ca7cab52 100644
--- a/tests/environment.rb
+++ b/tests/environment.rb
@@ -11,6 +11,7 @@ SimpleCov::Formatter::MultiFormatter[
 SimpleCov.coverage_dir File.join('tests', 'coverage')
 SimpleCov.start do
   add_filter "/migrations/"
+  add_filter "/tests/"
 end
 
 SimpleCov.command_name 'minitest'