diff --git a/tests/test_crawler.py b/tests/test_crawler.py
index 4c179c65b..0d54cbdb7 100644
--- a/tests/test_crawler.py
+++ b/tests/test_crawler.py
@@ -913,7 +913,7 @@ class TestCrawlerProcessSubprocess(ScriptRunnerMixin, unittest.TestCase):
         p.expect_exact("shutting down gracefully")
         # sending the second signal too fast often causes problems
         d = Deferred()
-        reactor.callLater(0.01, d.callback, None)
+        reactor.callLater(0.1, d.callback, None)
         yield d
         p.kill(sig)
         p.expect_exact("forcing unclean shutdown")