diff --git a/app/reports/preservation_versions.rb b/app/reports/preservation_versions.rb
index 3a2766a76..982f2c731 100644
--- a/app/reports/preservation_versions.rb
+++ b/app/reports/preservation_versions.rb
@@ -11,7 +11,7 @@ def self.report
 
   def report
     # Objects with a closed version, indicating they have been accessioned.
-    data = RepositoryObject.joins(:head_version).where.not(last_closed_version: nil).pluck(:external_identifier, :version)
+    data = RepositoryObject.joins(:last_closed_version).where.not(last_closed_version: nil).pluck(:external_identifier, :version)
 
     progress_bar = tty_progress_bar(data.length)
     progress_bar.start