diff --git a/tests/test_debugger.py b/tests/test_debugger.py
index 894f467..7d07977 100644
--- a/tests/test_debugger.py
+++ b/tests/test_debugger.py
@@ -186,6 +186,9 @@ def test_root_actor_bp_forever(
     # new task to lock the tty
     child.sendline('continue')
     child.expect(r"\(Pdb\+\+\)")
+
+    # seems that if we hit ctrl-c too fast the
+    # sigint guard machinery might not kick in..
     time.sleep(0.001)
 
     if ctlc: