diff --git a/src/aarch64-linux-flush-dcache/my_shmem.c b/src/aarch64-linux-flush-dcache/my_shmem.c
index e568b9b..b170101 100644
--- a/src/aarch64-linux-flush-dcache/my_shmem.c
+++ b/src/aarch64-linux-flush-dcache/my_shmem.c
@@ -76,7 +76,7 @@ static void my_shmem_vmops_close(struct vm_area_struct *vma)
 		/* Inside the window of mapped pages -- flush them up */
 		struct page *pg = entry->page;
 		ulong kvaddr_bgn = (ulong) page_address(pg);
-		ulong kvaddr_end = kvaddr_bgn + entry_pgs;
+		ulong kvaddr_end = kvaddr_bgn + entry_pgs * PAGE_SIZE;
 
 
 		pr_info("[%s] Before flush: 0x%px has 0x%lx [+%ld]. Refcount: %d\n",