diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b100255..c2b59db 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -768,7 +768,7 @@
 }
 
 #ifdef CONFIG_CMA
-/* Free whole pageblock and set it's migration type to MIGRATE_CMA. */
+/* Free whole pageblock and set its migration type to MIGRATE_CMA. */
 void __init init_cma_reserved_pageblock(struct page *page)
 {
 	unsigned i = pageblock_nr_pages;