diff --git a/asyncutils.nim b/asyncutils.nim
index 1813486..4e1e6e3 100644
--- a/asyncutils.nim
+++ b/asyncutils.nim
@@ -33,10 +33,8 @@ proc asyncExecCmd*(command: string): Future[string] =
     (result, exitCode) = execCmdEx(command)
     if exitCode != 0:
       failureEvent.trigger()
-      successEvent.close() # FIXME: is close the right way to cancel an event?
     else:
       successEvent.trigger()
-      failureEvent.close() # FIXME: is close the right way to cancel an event?
   let flowVar = spawn execCmdBackground(successEvent, failureEvent, command)
   proc successCallback(fd: AsyncFD): bool =
     future.complete(^flowVar)