diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c
index 18fc112b65cdf76703adfe2227ebaa1f34ed44a9..d3a8755c039cf0c70c5d9e5d78cdaa3c5347ef1f 100644
--- a/tools/vm/page_owner_sort.c
+++ b/tools/vm/page_owner_sort.c
@@ -5,7 +5,9 @@
  * Example use:
  * cat /sys/kernel/debug/page_owner > page_owner_full.txt
  * grep -v ^PFN page_owner_full.txt > page_owner.txt
- * ./sort page_owner.txt sorted_page_owner.txt
+ * ./page_owner_sort page_owner.txt sorted_page_owner.txt
+ *
+ * See Documentation/vm/page_owner.rst
 */
 
 #include <stdio.h>