diff --git a/tools/mm/page-types.c b/tools/mm/page-types.c
index 66f429f2b698..7fc5a8be5997 100644
--- a/tools/mm/page-types.c
+++ b/tools/mm/page-types.c
@@ -1261,7 +1261,7 @@ static const struct option opts[] = {
 	{ "no-summary", 0, NULL, 'N' },
 	{ "hwpoison"  , 0, NULL, 'X' },
 	{ "unpoison"  , 0, NULL, 'x' },
-	{ "kpageflags", 0, NULL, 'F' },
+	{ "kpageflags", 1, NULL, 'F' },
 	{ "help"      , 0, NULL, 'h' },
 	{ NULL        , 0, NULL, 0 }
 };