diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec3a9c888..1d85e7df5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,10 @@ Changelog
 * Add support for runtime versions to Delayed Job, Mailman and Shoryuken integrations
   | [#620](https://github.com/bugsnag/bugsnag-ruby/pull/620)
 
+* Reduce the size of the bundled gem
+  | [#571](https://github.com/bugsnag/bugsnag-ruby/pull/571)
+  | [t-richards](https://github.com/t-richards)
+
 ## Fixes
 
 * The `app_type` configuration option should no longer be overwritten by Bugsnag and integrations should set this more consistently
diff --git a/bugsnag.gemspec b/bugsnag.gemspec
index b5274eff3..a66724405 100644
--- a/bugsnag.gemspec
+++ b/bugsnag.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |s|
   s.homepage = "https://github.com/bugsnag/bugsnag-ruby"
   s.licenses = ["MIT"]
 
-  s.files = `git ls-files`.split("\n").reject {|file| file.start_with? "example/"}
+  s.files = `git ls-files -z lib bugsnag.gemspec VERSION`.split("\x0")
   s.extra_rdoc_files = [
     "LICENSE.txt",
     "README.md",