diff --git a/x-pack/plugins/index_management/__jest__/components/__snapshots__/index_table.test.js.snap b/x-pack/plugins/index_management/__jest__/components/__snapshots__/index_table.test.js.snap
index 1b8f28569fedc0..38d97fbe08101d 100644
--- a/x-pack/plugins/index_management/__jest__/components/__snapshots__/index_table.test.js.snap
+++ b/x-pack/plugins/index_management/__jest__/components/__snapshots__/index_table.test.js.snap
@@ -170,7 +170,7 @@ Array [
 ]
 `;
 
-exports[`index table show mapping button works from context menu 1`] = `"Mapping"`;
+exports[`index table show mappings button works from context menu 1`] = `"Mappings"`;
 
 exports[`index table show settings button works from context menu 1`] = `"Settings"`;
 
diff --git a/x-pack/plugins/index_management/__jest__/components/index_table.test.js b/x-pack/plugins/index_management/__jest__/components/index_table.test.js
index 84fbc04aa5a313..5e3edc78da5a85 100644
--- a/x-pack/plugins/index_management/__jest__/components/index_table.test.js
+++ b/x-pack/plugins/index_management/__jest__/components/index_table.test.js
@@ -354,7 +354,7 @@ describe('index table', () => {
   test('show settings button works from context menu', () => {
     testEditor(0);
   });
-  test('show mapping button works from context menu', () => {
+  test('show mappings button works from context menu', () => {
     testEditor(1);
   });
   test('show stats button works from context menu', () => {
diff --git a/x-pack/plugins/index_management/public/application/sections/home/index_list/detail_panel/detail_panel.js b/x-pack/plugins/index_management/public/application/sections/home/index_list/detail_panel/detail_panel.js
index e0128b1d51d02e..b891acee36e208 100644
--- a/x-pack/plugins/index_management/public/application/sections/home/index_list/detail_panel/detail_panel.js
+++ b/x-pack/plugins/index_management/public/application/sections/home/index_list/detail_panel/detail_panel.js
@@ -43,7 +43,7 @@ const tabToHumanizedMap = {
     <FormattedMessage id="xpack.idxMgmt.detailPanel.tabSettingsLabel" defaultMessage="Settings" />
   ),
   [TAB_MAPPING]: (
-    <FormattedMessage id="xpack.idxMgmt.detailPanel.tabMappingLabel" defaultMessage="Mapping" />
+    <FormattedMessage id="xpack.idxMgmt.detailPanel.tabMappingLabel" defaultMessage="Mappings" />
   ),
   [TAB_STATS]: (
     <FormattedMessage id="xpack.idxMgmt.detailPanel.tabStatsLabel" defaultMessage="Stats" />
diff --git a/x-pack/plugins/index_management/server/routes/api/mapping/register_mapping_route.ts b/x-pack/plugins/index_management/server/routes/api/mapping/register_mapping_route.ts
index 20d7e6b4d72329..35121af2232077 100644
--- a/x-pack/plugins/index_management/server/routes/api/mapping/register_mapping_route.ts
+++ b/x-pack/plugins/index_management/server/routes/api/mapping/register_mapping_route.ts
@@ -13,9 +13,9 @@ const paramsSchema = schema.object({
 });
 
 function formatHit(hit: { [key: string]: { mappings: any } }, indexName: string) {
-  const mapping = hit[indexName].mappings;
+  const mappings = hit[indexName].mappings;
   return {
-    mapping,
+    mappings,
   };
 }
 
diff --git a/x-pack/test/api_integration/apis/management/index_management/mapping.js b/x-pack/test/api_integration/apis/management/index_management/mapping.js
index fa0f6e04a7a4df..2b786542553de6 100644
--- a/x-pack/test/api_integration/apis/management/index_management/mapping.js
+++ b/x-pack/test/api_integration/apis/management/index_management/mapping.js
@@ -32,7 +32,7 @@ export default function({ getService }) {
 
       const { body } = await getIndexMapping(index).expect(200);
 
-      expect(body.mapping).to.eql(mappings);
+      expect(body.mappings).to.eql(mappings);
     });
   });
 }