diff --git a/Gemfile b/Gemfile
index d695524b..f29e4abd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,6 @@ gem 'maruku', '~> 0.7.0'
 gem 'rdiscount', '~> 2.0'
 gem 'launchy', '~> 2.3'
 gem 'simplecov', '~> 0.9'
-gem 'simplecov-gem-adapter', '~> 1.0.1'
 gem 'mime-types', '~> 1.5'
 gem 'activesupport', '~> 3.2.13'
 gem 'jekyll_test_plugin'
diff --git a/lib/simplecov_custom_profile.rb b/lib/simplecov_custom_profile.rb
new file mode 100644
index 00000000..eebb8fbe
--- /dev/null
+++ b/lib/simplecov_custom_profile.rb
@@ -0,0 +1,13 @@
+require 'simplecov'
+
+SimpleCov.profiles.define 'gem' do
+  add_filter '/test/'
+  add_filter '/features/'
+  add_filter '/spec/'
+  add_filter '/autotest/'
+
+  add_group 'Binaries', '/bin/'
+  add_group 'Libraries', '/lib/'
+  add_group 'Extensions', '/ext/'
+  add_group 'Vendor Libraries', '/vendor/'
+end
diff --git a/test/helper.rb b/test/helper.rb
index 257b2db9..4efa1f96 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -1,5 +1,4 @@
-require 'simplecov'
-require 'simplecov-gem-adapter'
+require 'simplecov_custom_profile'
 SimpleCov.start('gem') do
   add_filter "/vendor/bundle"
   add_filter "/vendor/gem"