diff --git a/xenolinux-2.4.16-sparse/arch/xeno/drivers/dom0/dom0_memory.c b/xenolinux-2.4.16-sparse/arch/xeno/drivers/dom0/dom0_memory.c
index c9420eaa56..b6af06fb8c 100644
--- a/xenolinux-2.4.16-sparse/arch/xeno/drivers/dom0/dom0_memory.c
+++ b/xenolinux-2.4.16-sparse/arch/xeno/drivers/dom0/dom0_memory.c
@@ -178,7 +178,7 @@ unsigned long direct_mmap(unsigned long phys_addr, unsigned long size,
     /* add node on the list of directly mapped areas, make sure the
 	 * list remains sorted.
 	 */ 
-    dmmap = (direct_mmap_node_t *)kmalloc(KMALLOC_SIZE, GFP_KERNEL);
+    dmmap = (direct_mmap_node_t *)kmalloc(sizeof(direct_mmap_node_t), GFP_KERNEL);
     dmmap->vm_start = addr;
     dmmap->vm_end = addr + size;
 	entry = find_direct(&current->mm->context.direct_list, addr);