--- check_syncrepl.py~	2009-01-18 20:47:34.000000000 +0100
+++ check_syncrepl.py	2009-01-18 20:49:33.000000000 +0100
@@ -264,8 +264,10 @@
     if (options.nagios):
 	if (IsInSync):
     	    print "OK"
+	    exit(0)
 	else:
 	    print "FAILED"
+	    exit(2)
 
 if __name__ == '__main__':
     main()