diff --git a/jupyter_client/win_interrupt.py b/jupyter_client/win_interrupt.py
index 1ba2c3af..bcd03232 100644
--- a/jupyter_client/win_interrupt.py
+++ b/jupyter_client/win_interrupt.py
@@ -34,7 +34,7 @@ class SECURITY_ATTRIBUTES(ctypes.Structure):  # noqa
 
     return ctypes.windll.kernel32.CreateEventA(  # type:ignore[attr-defined]
         sa_p,
-        False,
+        True,
         False,
         "",  # lpEventAttributes  # bManualReset  # bInitialState
     )  # lpName