diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 02d6e3e..ca573e9 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -4,6 +4,7 @@ require "simplecov"
 
 SimpleCov.start do
   enable_coverage :branch
+  add_filter "/spec/"
 end
 require "rex"