diff --git a/sched/start b/sched/start
index 23d09f54ea..c178c8c8f8 100755
--- a/sched/start
+++ b/sched/start
@@ -213,10 +213,10 @@ def double_fork():
     # Do second fork.
     try:
         pid = os.fork()
-        if pid > 0: sys._exit(0) # Exit second parent.
+        if pid > 0: os._exit(0) # Exit second parent.
     except OSError, e:
         sys.stderr.write("fork #2 failed: (%d) %s\n" % (e.errno, e.strerror))
-        sys._exit(1)
+        os._exit(1)
     return 0
 
 def write_pid_file(pidfile):