diff --git a/src/tests/dev.test.js b/src/tests/dev.test.js
index <HASH>..<HASH> 100644
--- a/src/tests/dev.test.js
+++ b/src/tests/dev.test.js
@@ -65,5 +65,5 @@ test.serial('netlify dev functions timeout', async t => {
 })
 
 test.after('cleanup', async t => {
-  if (ps && ps.pid) process.kill(-ps.pid, 'SIGINT')
+  if (ps && ps.pid) ps.kill('SIGHUP')
 })
Dev tests: Cleanup process better