diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 22da712022de..79d55e10bca9 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1516,6 +1516,8 @@ tree_unlocked:
 		unlock_page(new_page);
 
 		*hpage = NULL;
+
+		khugepaged_pages_collapsed++;
 	} else {
 		/* Something went wrong: rollback changes to the radix-tree */
 		shmem_uncharge(mapping->host, nr_none);