diff --git a/app/models/notification/bundle.rb b/app/models/notification/bundle.rb
index de42f23ba..c2da4224a 100644
--- a/app/models/notification/bundle.rb
+++ b/app/models/notification/bundle.rb
@@ -59,7 +59,7 @@ class Notification::Bundle < ApplicationRecord
 
     def validate_no_overlapping
       if overlapping_bundles.exists?
-        errors.add(:base, "Bundle window overlaps with an existing pending bundle")
+        errors.add(:base, "Bundle window overlaps with an existing pending bundle with id #{overlapping_bundles.first.id}")
       end
     end