diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e02a0f9ae..2665aa324 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -89,6 +89,8 @@ jobs:
       run: ./bin/browsertime.js -b chrome --pageCompleteCheckNetworkIdle --xvfb http://127.0.0.1:3000/simple/
     - name: Run test with check network idle in Firefox
       run: ./bin/browsertime.js -b firefox --pageCompleteCheckNetworkIdle --xvfb http://127.0.0.1:3000/simple/
+    - name: Run test with tcp dump
+      run: ./bin/browsertime.js -b chrome --xvfb http://127.0.0.1:3000/simple/ -n 1 --tcpdump
     - name: Run test with scripting.mjs
       run: ./bin/browsertime.js -b chrome -n 1 --xvfb test/data/scripting/module.mjs
     - name: Run test with scripting.cjs
diff --git a/lib/support/tcpdump.js b/lib/support/tcpdump.js
index e34d07428..353a9a042 100644
--- a/lib/support/tcpdump.js
+++ b/lib/support/tcpdump.js
@@ -32,7 +32,10 @@ export class TCPDump {
     this.tcpdumpProcess = execa('sudo', parameters);
   }
   async stop() {
-    return execa('sudo', ['pkill', '-9', 'tcpdump'], { reject: false });
+    if (this.tcpdumpProcess) {
+      await this.tcpdumpProcess.kill('SIGINT');
+      this.tcpdumpProcess = undefined;
+    }
   }
 
   async mv(url, iteration) {