diff --git a/detectors/node/opentelemetry-resource-detector-aws/src/detectors/AwsLambdaDetector.ts b/detectors/node/opentelemetry-resource-detector-aws/src/detectors/AwsLambdaDetector.ts
index 0e38a04a56..1b3d254540 100644
--- a/detectors/node/opentelemetry-resource-detector-aws/src/detectors/AwsLambdaDetector.ts
+++ b/detectors/node/opentelemetry-resource-detector-aws/src/detectors/AwsLambdaDetector.ts
@@ -18,12 +18,12 @@ import {
   Detector,
   Resource,
   ResourceDetectionConfig,
-} from '@opentelemetry/resources';
+} from "@opentelemetry/resources";
 import {
   CloudProviderValues,
   CloudPlatformValues,
   SemanticResourceAttributes,
-} from '@opentelemetry/semantic-conventions';
+} from "@opentelemetry/semantic-conventions";
 
 /**
  * The AwsLambdaDetector can be used to detect if a process is running in AWS Lambda
@@ -31,7 +31,7 @@ import {
  * Returns an empty Resource if detection fails.
  */
 export class AwsLambdaDetector implements Detector {
-  async detect(_config?: ResourceDetectionConfig): Promise<Resource> {
+  detectSync(_config?: ResourceDetectionConfig): Resource {
     const functionName = process.env.AWS_LAMBDA_FUNCTION_NAME;
     if (!functionName) {
       return Resource.empty();
@@ -61,6 +61,10 @@ export class AwsLambdaDetector implements Detector {
 
     return new Resource(attributes);
   }
+
+  async detect(_config?: ResourceDetectionConfig): Promise<Resource> {
+    return this.detectSync(_config);
+  }
 }
 
 export const awsLambdaDetector = new AwsLambdaDetector();
diff --git a/detectors/node/opentelemetry-resource-detector-aws/test/detectors/AwsLambdaDetector.test.ts b/detectors/node/opentelemetry-resource-detector-aws/test/detectors/AwsLambdaDetector.test.ts
index daaa34c61b..7a679e7075 100644
--- a/detectors/node/opentelemetry-resource-detector-aws/test/detectors/AwsLambdaDetector.test.ts
+++ b/detectors/node/opentelemetry-resource-detector-aws/test/detectors/AwsLambdaDetector.test.ts
@@ -14,15 +14,15 @@
  * limitations under the License.
  */
 
-import * as assert from 'assert';
+import * as assert from "assert";
 import {
   assertCloudResource,
   assertEmptyResource,
-} from '@opentelemetry/contrib-test-utils';
+} from "@opentelemetry/contrib-test-utils";
 
-import { awsLambdaDetector } from '../../src';
+import { awsLambdaDetector } from "../../src";
 
-describe('awsLambdaDetector', () => {
+describe("awsLambdaDetector", () => {
   let oldEnv: NodeJS.ProcessEnv;
 
   beforeEach(() => {
@@ -33,28 +33,44 @@ describe('awsLambdaDetector', () => {
     process.env = oldEnv;
   });
 
-  describe('on lambda', () => {
-    it('fills resource', async () => {
-      process.env.AWS_LAMBDA_FUNCTION_NAME = 'name';
-      process.env.AWS_LAMBDA_FUNCTION_VERSION = 'v1';
-      process.env.AWS_REGION = 'us-east-1';
+  describe("on lambda", () => {
+    it("fills resource", async () => {
+      process.env.AWS_LAMBDA_FUNCTION_NAME = "name";
+      process.env.AWS_LAMBDA_FUNCTION_VERSION = "v1";
+      process.env.AWS_REGION = "us-east-1";
 
       const resource = await awsLambdaDetector.detect();
 
       assertCloudResource(resource, {
-        provider: 'aws',
-        region: 'us-east-1',
+        provider: "aws",
+        region: "us-east-1",
       });
 
-      assert.strictEqual(resource.attributes['faas.name'], 'name');
-      assert.strictEqual(resource.attributes['faas.version'], 'v1');
+      assert.strictEqual(resource.attributes["faas.name"], "name");
+      assert.strictEqual(resource.attributes["faas.version"], "v1");
+    });
+
+    it("also works synchronously", async () => {
+      process.env.AWS_LAMBDA_FUNCTION_NAME = "name";
+      process.env.AWS_LAMBDA_FUNCTION_VERSION = "v1";
+      process.env.AWS_REGION = "us-east-1";
+
+      const resource = awsLambdaDetector.detectSync();
+
+      assertCloudResource(resource, {
+        provider: "aws",
+        region: "us-east-1",
+      });
+
+      assert.strictEqual(resource.attributes["faas.name"], "name");
+      assert.strictEqual(resource.attributes["faas.version"], "v1");
     });
   });
 
-  describe('not on lambda', () => {
-    it('returns empty resource', async () => {
-      process.env.AWS_LAMBDA_FUNCTION_VERSION = 'v1';
-      process.env.AWS_REGION = 'us-east-1';
+  describe("not on lambda", () => {
+    it("returns empty resource", async () => {
+      process.env.AWS_LAMBDA_FUNCTION_VERSION = "v1";
+      process.env.AWS_REGION = "us-east-1";
 
       const resource = await awsLambdaDetector.detect();