diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc2f7ecb26..e410ceab43 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 
 ## Unreleased
 
+* Fix rendering of unnumbered papers ([PR #3988](https://github.com/alphagov/govuk_publishing_components/pull/3988))
 * Add PDF specific icon to attachment component ([PR #3985](https://github.com/alphagov/govuk_publishing_components/pull/3985))
 * Add the hidden attribute to mobile menu button ([PR #3975](https://github.com/alphagov/govuk_publishing_components/pull/3975))
 * Add tool_name to GA4 feedback component tracking ([PR #3984](https://github.com/alphagov/govuk_publishing_components/pull/3984))
diff --git a/lib/govuk_publishing_components/presenters/attachment_helper.rb b/lib/govuk_publishing_components/presenters/attachment_helper.rb
index 417c5f424a..0670a117b4 100644
--- a/lib/govuk_publishing_components/presenters/attachment_helper.rb
+++ b/lib/govuk_publishing_components/presenters/attachment_helper.rb
@@ -78,8 +78,8 @@ def reference
       end
 
       def unnumbered_reference
-        unnumbered_reference = "Unnumbered command paper" if attachment_data[:unnumbered_command_paper].eql?(true) && !attachment_data[:command_paper_number]
-        unnumbered_reference = "Unnumbered act paper" if attachment_data[:unnumbered_hoc_paper].eql?(true) && !attachment_data[:hoc_paper_number]
+        unnumbered_reference = "Unnumbered command paper" if attachment_data[:unnumbered_command_paper].eql?(true) && attachment_data[:command_paper_number].blank?
+        unnumbered_reference = "Unnumbered act paper" if attachment_data[:unnumbered_hoc_paper].eql?(true) && attachment_data[:hoc_paper_number].blank?
         unnumbered_reference
       end
 
diff --git a/spec/lib/govuk_publishing_components/presenters/attachment_spec.rb b/spec/lib/govuk_publishing_components/presenters/attachment_spec.rb
index 8732a3cc17..cfdf4c012b 100644
--- a/spec/lib/govuk_publishing_components/presenters/attachment_spec.rb
+++ b/spec/lib/govuk_publishing_components/presenters/attachment_spec.rb
@@ -175,6 +175,7 @@
         title: "test",
         url: "test",
         content_type: "text/csv",
+        command_paper_number: "",
         unnumbered_command_paper: true,
       )
       expect(attachment.unnumbered_reference).to eq("Unnumbered command paper")
@@ -185,6 +186,7 @@
         title: "test",
         url: "test",
         content_type: "text/csv",
+        hoc_paper_number: "",
         unnumbered_hoc_paper: true,
       )
       expect(attachment.unnumbered_reference).to eq("Unnumbered act paper")