diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index a7b206dedb..3b1833e754 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -10,6 +10,7 @@ Changelog
  * Fix: Re-add 'Close Explorer' button on mobile viewports (Sævar Öfjörð Magnússon)
  * Fix: Add a more descriptive label to Password reset link for screen reader users (Casper Timmers, Martin Coote)
  * Fix: Improve Wagtail logo contrast by adding a background (Brian Edelman, Simon Evans, Ben Enright)
+ * Support the rel attribute on custom ModelAdmin buttons (Andy Chosak)
 
 
 2.8 (xx.xx.xxxx) - IN DEVELOPMENT
diff --git a/docs/releases/2.9.rst b/docs/releases/2.9.rst
index 602b44799a..1fa1607df2 100644
--- a/docs/releases/2.9.rst
+++ b/docs/releases/2.9.rst
@@ -15,6 +15,7 @@ Other features
 ~~~~~~~~~~~~~~
 
  * Reduced contrast of rich text toolbar (Jack Paine)
+ * Support the rel attribute on custom ModelAdmin buttons (Andy Chosak)
 
 
 Bug fixes
diff --git a/wagtail/contrib/modeladmin/templates/modeladmin/includes/button.html b/wagtail/contrib/modeladmin/templates/modeladmin/includes/button.html
index eabc958cd8..67854d728a 100644
--- a/wagtail/contrib/modeladmin/templates/modeladmin/includes/button.html
+++ b/wagtail/contrib/modeladmin/templates/modeladmin/includes/button.html
@@ -1 +1 @@
-<a{% if button.url %} href="{{ button.url }}"{% endif %} class="{{ button.classname }}" title="{{ button.title }}"{% if button.target %} target="{{ button.target }}"{% endif %}>{{ button.label }}</a>
+<a{% if button.url %} href="{{ button.url }}"{% endif %} class="{{ button.classname }}" title="{{ button.title }}"{% if button.target %} target="{{ button.target }}"{% endif %}{% if button.rel %} rel="{{ button.rel }}"{% endif %}>{{ button.label }}</a>