diff --git a/python-tornado6.changes b/python-tornado6.changes
index 39bbf15..d3d7215 100644
--- a/python-tornado6.changes
+++ b/python-tornado6.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Nov  8 13:28:37 UTC 2019 - Andreas Schwab <schwab@suse.de>
+
+- Define TRAVIS to disable unreliable tests
+
 -------------------------------------------------------------------
 Mon Oct 14 14:45:59 UTC 2019 - Matej Cepl <mcepl@suse.com>
 
diff --git a/python-tornado6.spec b/python-tornado6.spec
index e5b9d06..1c6a9fe 100644
--- a/python-tornado6.spec
+++ b/python-tornado6.spec
@@ -89,6 +89,7 @@ fi
 %check
 export ASYNC_TEST_TIMEOUT=30
 export PYTHONDONTWRITEBYTECODE=1
+export TRAVIS=1
 %python_exec -m tornado.test.runtests
 
 %files %{python_files}