diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index afc8125fa..20a0fe589 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -29,6 +29,7 @@ Changelog
  * Fix: Fixed rendering of border on dropdown arrow buttons on Chrome (Bertrand Bordage)
  * Fix: Fixed incorrect z-index on userbar causing it to appear behind page content (Stein Strindhaug)
  * Fix: Form submissions pagination no longer looses date filter when changing page (Bertrand Bordage)
+ * Fix: PostgreSQL search backend now removes duplicate page instances from the database (Bertrand Bordage)
 
 
 1.13.1 (17.11.2017)
diff --git a/docs/releases/2.0.rst b/docs/releases/2.0.rst
index eafbf7300..177d14483 100644
--- a/docs/releases/2.0.rst
+++ b/docs/releases/2.0.rst
@@ -41,6 +41,7 @@ Bug fixes
  * Fixed rendering of border on dropdown arrow buttons on Chrome (Bertrand Bordage)
  * Fixed incorrect z-index on userbar causing it to appear behind page content (Stein Strindhaug)
  * Form submissions pagination no longer looses date filter when changing page (Bertrand Bordage)
+ * PostgreSQL search backend now removes duplicate page instances from the database (Bertrand Bordage)
 
 
 Upgrade considerations