diff --git a/activerecord-multi-tenant.gemspec b/activerecord-multi-tenant.gemspec
index 0811991..729df40 100644
--- a/activerecord-multi-tenant.gemspec
+++ b/activerecord-multi-tenant.gemspec
@@ -14,7 +14,13 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 3.0.0'
   spec.metadata = { 'rubygems_mfa_required' => 'true' }
 
-  spec.files = `git ls-files`.split("\n")
+  gemspec = File.basename(__FILE__)
+  spec.files = IO.popen(%w[git ls-files -z], chdir: __dir__, err: IO::NULL) do |ls|
+    ls.readlines("\x0", chomp: true).reject do |f|
+      (f == gemspec) ||
+        f.start_with?(*%w[bin/ test/ spec/ features/ .git .github Appraisals appveyor Gemfile])
+    end
+  end
   spec.require_paths = ['lib']
   spec.homepage = 'https://github.com/citusdata/activerecord-multi-tenant'
   spec.license = 'MIT'