diff --git a/docs/en_US/release_notes_4_3.rst b/docs/en_US/release_notes_4_3.rst
index 5709c6376..0aab796aa 100644
--- a/docs/en_US/release_notes_4_3.rst
+++ b/docs/en_US/release_notes_4_3.rst
@@ -38,5 +38,6 @@ Bug fixes
 | `Bug #3981 <https://redmine.postgresql.org/issues/3981>`_ - Fix the query to set bytea_output so that read-only standbys don't consider it a write query.
 | `Bug #3985 <https://redmine.postgresql.org/issues/3985>`_ - Don't embed docs and external sites in iframes, to allow the external sites to set X-FRAME-OPTIONS = DENY for security.
 | `Bug #4000 <https://redmine.postgresql.org/issues/4000>`_ - Update CodeMirror to 5.43.0 to resolve issues with tab indent with use spaces enabled.
+| `Bug #4013 <https://redmine.postgresql.org/issues/4013>`_ - Ensure long queries don't cause errors when downloading CSV in the Query Tool.
 | `Bug #4021 <https://redmine.postgresql.org/issues/4021>`_ - Disable the editor and execute functions whilst queries are executing.
 | `Bug #4022 <https://redmine.postgresql.org/issues/4022>`_ - Fix an issue where importing servers fails if a group already exists for a different user.
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