diff --git a/UNRELEASED.md b/UNRELEASED.md
index 32388fa252c..32fce703323 100644
--- a/UNRELEASED.md
+++ b/UNRELEASED.md
@@ -18,6 +18,7 @@ Use [the changelog guidelines](https://git.io/polaris-changelog-guidelines) to f
 - Made items in `ActionList` more clear in high contrast mode ([#3971](https://github.com/Shopify/polaris-react/pull/3971))
 - Fixed the MediaCard thumbnail’s corner roundness, so it wouldn’t overflow out of the parent Card ([#3974](https://github.com/Shopify/polaris-react/issues/3974))
 - Fixed `ActionList` `Item` not disabling properly when url prop is passed ([#3979](https://github.com/Shopify/polaris-react/pull/3979))
+- Fixed `CheckableButton` missing border when focused ([#3987](https://github.com/Shopify/polaris-react/issues/3987))
 
 ### Documentation
 
diff --git a/src/components/CheckableButton/CheckableButton.scss b/src/components/CheckableButton/CheckableButton.scss
index e969003a8c0..54a196176d8 100644
--- a/src/components/CheckableButton/CheckableButton.scss
+++ b/src/components/CheckableButton/CheckableButton.scss
@@ -32,7 +32,6 @@ $chekbox-label-margin: rem(20px);
   [data-buttongroup-segmented='true'] & {
     border-top-right-radius: 0;
     border-bottom-right-radius: 0;
-    border-right: none;
   }
 
   &:hover {