diff --git a/x-pack/plugin/otel-data/src/main/resources/component-templates/traces-otel@mappings.yaml b/x-pack/plugin/otel-data/src/main/resources/component-templates/traces-otel@mappings.yaml
index 3a1ba435b8f1f..fda2e8a756e5e 100644
--- a/x-pack/plugin/otel-data/src/main/resources/component-templates/traces-otel@mappings.yaml
+++ b/x-pack/plugin/otel-data/src/main/resources/component-templates/traces-otel@mappings.yaml
@@ -41,6 +41,13 @@ template:
           unit: nanos
       dropped_events_count:
         type: long
+      attributes:
+        type: passthrough
+        dynamic: true
+        priority: 20
+        properties:
+          elastic.profiler_stack_trace_ids:
+            type: counted_keyword
       links:
         synthetic_source_keep: arrays
         properties:
diff --git a/x-pack/plugin/otel-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_tests.yml b/x-pack/plugin/otel-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_tests.yml
index 82d0672438ce5..5e50afeff6e40 100644
--- a/x-pack/plugin/otel-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_tests.yml
+++ b/x-pack/plugin/otel-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_tests.yml
@@ -140,3 +140,21 @@ traces@lifecycle:
         index: $datastream-backing-index
   - is_true: $datastream-backing-index
   - match: { .$datastream-backing-index.settings.index.lifecycle.name: "traces@lifecycle" }
+---
+"profiler_stack_trace_ids field should have type counted_keyword":
+  - do:
+      bulk:
+        index: traces-generic.otel-default
+        refresh: true
+        body:
+          - create: {}
+          - '{"@timestamp":"2024-07-18T14:49:33.467654000Z","data_stream":{"dataset":"generic.otel","namespace":"default"}, "span_id":"1", "attributes": {"elastic.profiler_stack_trace_ids": "S7VyNjRieh4zCEmv7MiwwAcaFlvHvn1cleFkExsq-nbA"}}'
+  - is_false: errors
+  - do:
+      indices.get_data_stream:
+        name: traces-generic.otel-default
+  - set: { data_streams.0.indices.0.index_name: idx0name }
+  - do:
+      indices.get_mapping:
+        index: $idx0name
+  - match: { .$idx0name.mappings.properties.attributes.properties.elastic\.profiler_stack_trace_ids.type: 'counted_keyword' }