diff --git a/Lib/test/test_thread.py b/Lib/test/test_thread.py
index b466138..2f9abe0 100644
--- a/Lib/test/test_thread.py
+++ b/Lib/test/test_thread.py
@@ -22,6 +22,7 @@
             print arg
 
 
+
 class BasicThreadTest(unittest.TestCase):
 
     def setUp(self):
@@ -33,6 +34,9 @@
         self.running = 0
         self.next_ident = 0
 
+        key = test_support.threading_setup()
+        self.addCleanup(test_support.threading_cleanup, *key)
+
 
 class ThreadRunningTests(BasicThreadTest):
 
diff --git a/Misc/ACKS b/Misc/ACKS
index 96cc90e..01bcd3b 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -507,6 +507,7 @@
 Eric Groo
 Dag Gruneau
 Filip Gruszczyński
+Grzegorz Grzywacz
 Thomas Guettler
 Anuj Gupta
 Michael Guravage
diff --git a/Misc/NEWS b/Misc/NEWS
index 9b551dc..059f2b3 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12109,6 +12109,10 @@
 
 Tests
 -----
+- bpo-30357: test_thread: setUp() now uses support.threading_setup() and
+  support.threading_cleanup() to wait until threads complete to avoid
+  random side effects on following tests. Initial patch written by Grzegorz
+  Grzywacz.
 
 - Refactor test_logging to use unittest.