diff --git a/UNRELEASED.md b/UNRELEASED.md
index 0b8f4c99e1f..b414b597f9e 100644
--- a/UNRELEASED.md
+++ b/UNRELEASED.md
@@ -12,6 +12,7 @@ Use [the changelog guidelines](/documentation/Versioning%20and%20changelog.md) t
 
 - Fixed `segmented` `ButtonGroup` misaligning icon only buttons when grouped with text only buttons ([#4079](https://github.com/Shopify/polaris-react/issues/4079))
 - Added missing styles for `destructive` `Page` `secondaryActions` ([#4647](https://github.com/Shopify/polaris-react/pull/4647))
+- Removed `min-height` from `Page` `additionalNavigation` ([#4952](https://github.com/Shopify/polaris-react/pull/4952))
 
 ### Documentation
 
diff --git a/src/components/Page/components/Header/Header.scss b/src/components/Page/components/Header/Header.scss
index 7a85be75ac5..76ac4488909 100644
--- a/src/components/Page/components/Header/Header.scss
+++ b/src/components/Page/components/Header/Header.scss
@@ -144,7 +144,10 @@ $action-menu-rollup-computed-width: rem(40px);
 .Row {
   display: flex;
   justify-content: space-between;
-  min-height: 36px;
+
+  &:first-child {
+    min-height: 36px;
+  }
 
   + .Row {
     margin-top: spacing(extra-tight);