diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index abe54f0043c7..1be61cd5440d 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -67,7 +67,7 @@ enum scan_result {
 static struct task_struct *khugepaged_thread __read_mostly;
 static DEFINE_MUTEX(khugepaged_mutex);
 
-/* default scan 8*512 pte (or vmas) every 30 second */
+/* default scan 8*HPAGE_PMD_NR ptes (or vmas) every 10 second */
 static unsigned int khugepaged_pages_to_scan __read_mostly;
 static unsigned int khugepaged_pages_collapsed;
 static unsigned int khugepaged_full_scans;