diff --git a/packages/core/src/telemetry/gcp-exporters.test.ts b/packages/core/src/telemetry/gcp-exporters.test.ts
index c863a74459..6415104d53 100644
--- a/packages/core/src/telemetry/gcp-exporters.test.ts
+++ b/packages/core/src/telemetry/gcp-exporters.test.ts
@@ -131,7 +131,7 @@ describe('GCP Exporters', () => {
           }),
           expect.objectContaining({
             message: 'Test log message',
-            session_id: 'test-session',
+            'session.id': 'test-session',
             'custom.attribute': 'value',
             'service.name': 'test-service',
           }),
diff --git a/packages/core/src/telemetry/gcp-exporters.ts b/packages/core/src/telemetry/gcp-exporters.ts
index 3abf9ab43b..8bc776f636 100644
--- a/packages/core/src/telemetry/gcp-exporters.ts
+++ b/packages/core/src/telemetry/gcp-exporters.ts
@@ -71,7 +71,6 @@ export class GcpLogExporter implements LogRecordExporter {
             },
           },
           {
-            session_id: log.attributes?.['session.id'],
             ...log.attributes,
             ...log.resource?.attributes,
             message: log.body,