diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 469ff6157986c9e8ea17f2fc5fd48476bbfa75a0..68092d15e12b5ffaaa1f974cf625a073ffe6797a 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -148,6 +148,8 @@ static void usage(void)
 		"    p | P              Poisoning\n"
 		"    u | U              Tracking\n"
 		"    t | T              Tracing\n"
+
+		"\nSorting options (--Loss, --Size, --Partial) are mutually exclusive\n"
 	);
 }