diff --git a/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.test.tsx b/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.test.tsx
index 3296155fdce5d06..a16620e75412d14 100644
--- a/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.test.tsx
+++ b/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.test.tsx
@@ -85,7 +85,7 @@ describe('BoostItemContent', () => {
     expect(actions.updateBoostFactor).toHaveBeenCalledWith('foo', 3, 2);
   });
 
-  it("will delete the current boost if the 'Delete Boost' button is clicked", () => {
+  it("will delete the current boost if the 'Delete boost' button is clicked", () => {
     const boost = {
       factor: 8,
       type: 'proximity' as BoostType,
diff --git a/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.tsx b/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.tsx
index 7a19564543c81fb..f83ec99acb1acb8 100644
--- a/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.tsx
+++ b/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/boost_item_content.tsx
@@ -74,7 +74,7 @@ export const BoostItemContent: React.FC<Props> = ({ boost, index, name }) => {
         {i18n.translate(
           'xpack.enterpriseSearch.appSearch.engine.relevanceTuning.boosts.deleteBoostButtonLabel',
           {
-            defaultMessage: 'Delete Boost',
+            defaultMessage: 'Delete boost',
           }
         )}
       </EuiButton>
diff --git a/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/value_boost_form.tsx b/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/value_boost_form.tsx
index 15d19a9741d0a2c..7fcd07d9a07aadc 100644
--- a/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/value_boost_form.tsx
+++ b/x-pack/plugins/enterprise_search/public/applications/app_search/components/relevance_tuning/boosts/boost_item_content/value_boost_form.tsx
@@ -70,7 +70,7 @@ export const ValueBoostForm: React.FC<Props> = ({ boost, index, name }) => {
         {i18n.translate(
           'xpack.enterpriseSearch.appSearch.engine.relevanceTuning.boosts.value.addValueButtonLabel',
           {
-            defaultMessage: 'Add Value',
+            defaultMessage: 'Add value',
           }
         )}
       </EuiButton>