diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e0f2cdf..ad7cd1c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1983,7 +1983,7 @@
 		unsigned long alloc_end = addr + (PAGE_SIZE << order);
 		unsigned long used = addr + PAGE_ALIGN(size);
 
-		split_page(virt_to_page(addr), order);
+		split_page(virt_to_page((void *)addr), order);
 		while (used < alloc_end) {
 			free_page(used);
 			used += PAGE_SIZE;