diff --git a/src/constants.js b/src/constants.js
index 48a73599..9727a641 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -4,6 +4,7 @@ import os from 'os';
 import {version} from '../package.json';
 
 export const DEFAULT_SAUCE_CONNECT_VERSION = '5.2.2';
+export const DEFAULT_RUNNER_NAME = 'node-saucelabs';
 export const SAUCE_VERSION_NOTE = `node-saucelabs v${version}\nSauce Connect v${DEFAULT_SAUCE_CONNECT_VERSION}`;
 
 const protocols = [
diff --git a/src/index.js b/src/index.js
index 04664d5e..05f87d30 100644
--- a/src/index.js
+++ b/src/index.js
@@ -36,6 +36,7 @@ import {
   DEFAULT_SAUCE_CONNECT_VERSION,
   SC_FAILURE_MESSAGES,
   SC_BOOLEAN_CLI_PARAMS,
+  DEFAULT_RUNNER_NAME,
 } from './constants';
 import SauceConnectLoader from './sauceConnectLoader';
 
@@ -248,6 +249,16 @@ export default class SauceLabs {
       );
     }
 
+    // Provide a default runner name. It's used for identifying the tunnel's initiation method.
+    if (!argv['metadata']) {
+      argv = {...argv, metadata: `runner=${DEFAULT_RUNNER_NAME}`};
+    } else if (!argv['metadata'].includes('runner=')) {
+      argv = {
+        ...argv,
+        metadata: `runner=${DEFAULT_RUNNER_NAME},${argv['metadata']}`,
+      };
+    }
+
     const scUpstreamProxy = argv.scUpstreamProxy;
     const args = Object.entries(argv)
       /**
diff --git a/tests/__snapshots__/index.test.js.snap b/tests/__snapshots__/index.test.js.snap
index 0ad7f1d7..d7f4f1bd 100644
--- a/tests/__snapshots__/index.test.js.snap
+++ b/tests/__snapshots__/index.test.js.snap
@@ -162,6 +162,7 @@ exports[`startSauceConnect should start sauce connect with proper parsed args 1`
       "run",
       "--proxy-tunnel=abc",
       "--verbose=true",
+      "--metadata=runner=node-saucelabs",
       "--username=foo",
       "--access-key=bar",
       "--region=eu-central-1",