diff --git a/repmgrd.c b/repmgrd.c
index 2ea246bd..0abd7345 100644
--- a/repmgrd.c
+++ b/repmgrd.c
@@ -131,7 +131,7 @@ main(int argc, char **argv)
 
 	memset(pid_file, 0, MAXPGPATH);
 
-	while ((c = getopt_long(argc, argv, "?Vf:L:vdp:m", long_options, &optindex)) != -1)
+	while ((c = getopt_long(argc, argv, "?Vf:L:vdp:sm", long_options, &optindex)) != -1)
 	{
 		switch (c)
 		{