diff --git a/kernel/mem.c b/kernel/mem.c
index 1e0d8f8d..867fd58d 100644
--- a/kernel/mem.c
+++ b/kernel/mem.c
@@ -1445,11 +1445,15 @@ static ssize_t numa_sysfs_show_meminfo(struct sysfs_ops *ops,
 
 #ifdef IHK_RBTREE_ALLOCATOR
 	len += snprintf(&sbuf[len], size - len, "Node %d MemTotal:%15d kB\n",
-			node->id, node->nr_pages << 2);
+			node->id,
+			node->nr_pages << (PAGE_SHIFT - 10));
 	len += snprintf(&sbuf[len], size - len, "Node %d MemFree:%16d kB\n",
-			node->id, node->nr_free_pages << 2);
+			node->id,
+			node->nr_free_pages << (PAGE_SHIFT - 10));
 	len += snprintf(&sbuf[len], size - len, "Node %d MemUsed:%16d kB\n",
-			node->id, (node->nr_pages - node->nr_free_pages) << 2);
+			node->id,
+			(node->nr_pages - node->nr_free_pages)
+				<< (PAGE_SHIFT - 10));
 #endif
 
 	return len;