diff --git a/.gitignore b/.gitignore
index 248513af..3bec8332 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ Gemfile.lock
 *.swp
 dump.rdb
 .rbx
+coverage/
diff --git a/test/helper.rb b/test/helper.rb
index 8d2d3d87..5f8a9ebf 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -1,5 +1,5 @@
 $TESTING = true
-if false
+if ENV.has_key?("SIMPLECOV")
   require 'simplecov'
   SimpleCov.start
 end