diff --git a/selftest/lock_test.ok b/selftest/lock_test.ok
index 0e3db40f..d7152ac3 100644
--- a/selftest/lock_test.ok
+++ b/selftest/lock_test.ok
@@ -1,8 +1,4 @@
-acquired lock: 'long name'
 launched first, locked by: long name
 launched second, locked by: long name
-leaving lock: 'long name'
-acquired lock: 'shorter'
 waited, locked by: shorter
-leaving lock: 'shorter'
 waited more, locked by: 
diff --git a/selftest/lock_test_help.py b/selftest/lock_test_help.py
index 7b6dfa1a..bdf7c646 100644
--- a/selftest/lock_test_help.py
+++ b/selftest/lock_test_help.py
@@ -14,12 +14,8 @@ lockfile_path = os.path.join(testdir, 'lock_test')
 fl = FileLock(lockfile_path, name)
 
 with fl:
-    print('acquired lock: %r' % fl.owner)
-    sys.stdout.flush()
     while os.path.exists(stop_signalling_file):
         time.sleep(.1)
-    print('leaving lock: %r' % fl.owner)
-    sys.stdout.flush()
 touch_file(stop_signalling_file + '.done')
 
 # vim: expandtab tabstop=4 shiftwidth=4