diff --git a/.travis.yml b/.travis.yml
index 332fa64ac..afeefccd9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,6 @@ env:
     - OCTOKIT_TEST_GITHUB_TOKEN="6a21f190e3422bf89afa8b360d923b0c30e8fbfa"
     - OCTOKIT_TEST_GITHUB_CLIENT_ID='abcdefabcdefabcdefab'
     - OCTOKIT_TEST_GITHUB_CLIENT_SECRET='abcdefabcdefabcdefababcdefabcdefabcdefab'
-    - OCTOKIT_TEST_INTEGRATION_PEM_KEY='./spec/fixtures/fake_integration.private-key.pem'
     - OCTOKIT_SILENT=true
 
 before_script:
diff --git a/spec/helper.rb b/spec/helper.rb
index e6220185c..6de25e716 100644
--- a/spec/helper.rb
+++ b/spec/helper.rb
@@ -181,6 +181,10 @@ def test_github_integration_installation
   ENV.fetch 'OCTOKIT_TEST_GITHUB_INTEGRATION_INSTALLATION', 37
 end
 
+def test_github_integration_pem_key
+  ENV.fetch 'OCTOKIT_TEST_INTEGRATION_PEM_KEY', "#{fixture_path}/fake_integration.private-key.pem"
+end
+
 def stub_delete(url)
   stub_request(:delete, github_url(url))
 end
diff --git a/spec/octokit/client/integrations_spec.rb b/spec/octokit/client/integrations_spec.rb
index 06e9f82cc..bca205013 100644
--- a/spec/octokit/client/integrations_spec.rb
+++ b/spec/octokit/client/integrations_spec.rb
@@ -90,7 +90,7 @@
   private
 
   def new_jwt_token
-    private_pem = File.read(ENV['OCTOKIT_TEST_INTEGRATION_PEM_KEY'])
+    private_pem = File.read(test_github_integration_pem_key)
     private_key = OpenSSL::PKey::RSA.new(private_pem)
 
     payload = {}.tap do |opts|