diff --git a/x-pack/plugins/observability_solution/apm/server/routes/errors/get_error_groups/get_error_sample_details.ts b/x-pack/plugins/observability_solution/apm/server/routes/errors/get_error_groups/get_error_sample_details.ts
index 954086ee53084..a3edca6d30740 100644
--- a/x-pack/plugins/observability_solution/apm/server/routes/errors/get_error_groups/get_error_sample_details.ts
+++ b/x-pack/plugins/observability_solution/apm/server/routes/errors/get_error_groups/get_error_sample_details.ts
@@ -27,6 +27,7 @@ import {
   TRANSACTION_ID,
   ERROR_STACK_TRACE,
   SPAN_ID,
+  SERVICE_LANGUAGE_NAME,
 } from '../../../../common/es_fields/apm';
 import { environmentQuery } from '../../../../common/utils/environment_query';
 import { ApmDocumentType } from '../../../../common/document_type';
@@ -82,6 +83,7 @@ export async function getErrorSampleDetails({
     SPAN_ID,
     AGENT_VERSION,
     PROCESSOR_NAME,
+    SERVICE_LANGUAGE_NAME,
     ERROR_STACK_TRACE,
     ERROR_EXC_MESSAGE,
     ERROR_EXC_HANDLED,
diff --git a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/generate_data.ts b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/generate_data.ts
index c1ae372335824..cf7623fc15257 100644
--- a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/generate_data.ts
+++ b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/generate_data.ts
@@ -33,6 +33,9 @@ export async function generateData({
 }) {
   const serviceGoProdInstance = apm
     .service({ name: serviceName, environment: 'production', agentName: 'swift' })
+    .defaults({
+      'service.language.name': 'swift',
+    })
     .instance('instance-a');
 
   const interval = '1m';
diff --git a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/group_id_samples.spec.ts b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/group_id_samples.spec.ts
index 6e5a19327c24f..f82a8b1a3139f 100644
--- a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/group_id_samples.spec.ts
+++ b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/mobile/errors/group_id_samples.spec.ts
@@ -134,6 +134,10 @@ export default function ApiTest({ getService }: DeploymentAgnosticFtrProviderCon
               'Error 1'
             );
           });
+
+          it('displays correct language name', () => {
+            expect(errorSampleDetailsResponse.error.service.language?.name).to.equal('swift');
+          });
         });
       });