diff --git a/datadog_lambda/tracing.py b/datadog_lambda/tracing.py
index bed55eba..d8ecca1d 100644
--- a/datadog_lambda/tracing.py
+++ b/datadog_lambda/tracing.py
@@ -139,7 +139,7 @@ def extract_context_from_sqs_event_or_context(event, lambda_context):
     try:
         first_record = event["Records"][0]
         msg_attributes = first_record.get("messageAttributes", {})
-        dd_json_data = msg_attributes.get("_datadog", {}).get("StringValue", r"{}")
+        dd_json_data = msg_attributes.get("_datadog", {}).get("stringValue", r"{}")
         dd_data = json.loads(dd_json_data)
         trace_id = dd_data.get(TraceHeader.TRACE_ID)
         parent_id = dd_data.get(TraceHeader.PARENT_ID)
diff --git a/tests/integration/input_events/sqs.json b/tests/integration/input_events/sqs.json
index 3f672703..0ec29df4 100644
--- a/tests/integration/input_events/sqs.json
+++ b/tests/integration/input_events/sqs.json
@@ -12,7 +12,7 @@
       },
       "messageAttributes": {
         "_datadog": {
-          "StringValue": "{\"x-datadog-trace-id\":\"666\",\"x-datadog-parent-id\":\"777\",\"x-datadog-sampling-priority\":\"1\"}"
+          "stringValue": "{\"x-datadog-trace-id\":\"666\",\"x-datadog-parent-id\":\"777\",\"x-datadog-sampling-priority\":\"1\"}"
         }
       },
       "md5OfBody": "e4e68fb7bd0e697a0ae8f1bb342846b3",
diff --git a/tests/test_tracing.py b/tests/test_tracing.py
index 2b93882f..0c8f8154 100644
--- a/tests/test_tracing.py
+++ b/tests/test_tracing.py
@@ -166,7 +166,7 @@ def test_with_sqs_distributed_datadog_trace_data(self):
                     },
                     "messageAttributes": {
                         "_datadog": {
-                            "StringValue": json.dumps(
+                            "stringValue": json.dumps(
                                 {
                                     TraceHeader.TRACE_ID: "123",
                                     TraceHeader.PARENT_ID: "321",