diff --git a/app/services/document_security_service.rb b/app/services/document_security_service.rb
index 47b231b5..5c2170ba 100644
--- a/app/services/document_security_service.rb
+++ b/app/services/document_security_service.rb
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+require 'aws-sdk-cloudfront'
+
 # Service for handling secure document access with CloudFront signed URLs
 # Reuses same infrastructure and key pairs as ATS
 class DocumentSecurityService