diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5d701b9b17..f8dd7ddc21a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,7 +12,7 @@
 
 - Reduced the size of the icons and clear button for compressed `EuiFormControlLayout` ([#4374](https://github.com/elastic/eui/pull/4374))
 - Added ability for text input updates in `EuiDatePicker` ([#4243](https://github.com/elastic/eui/pull/4243))
-- Fixed heights of `append` and `prepend` in `EuiFormControlLayout` ([#4410](https://github.com/elastic/eui/pull/4410))
+- **[REVERTED in 31.3.0]** Fixed heights of `append` and `prepend` in `EuiFormControlLayout` ([#4410](https://github.com/elastic/eui/pull/4410))
 
 **Bug fixes**
 
diff --git a/src/components/form/form_control_layout/_form_control_layout.scss b/src/components/form/form_control_layout/_form_control_layout.scss
index bec98d46fdf..3fa99e419ab 100644
--- a/src/components/form/form_control_layout/_form_control_layout.scss
+++ b/src/components/form/form_control_layout/_form_control_layout.scss
@@ -38,7 +38,7 @@
   .euiFormControlLayout__append {
     @include euiTextTruncate;
     flex-shrink: 0;
-    height: auto;
+    height: 100%;
     border-radius: 0;
 
     // ICONS
diff --git a/src/components/health/health.tsx b/src/components/health/health.tsx
index 691aa17acbb..3f53700c7e2 100644
--- a/src/components/health/health.tsx
+++ b/src/components/health/health.tsx
@@ -45,7 +45,7 @@ export type EuiHealthProps = CommonProps &
     /**
      * Matches the text scales of EuiText.
      * The `inherit` style will get its font size from the parent element
-    */
+     */
     textSize?: typeof TEXT_SIZES[number];
   };