diff --git a/Part3/09_memory/kernel/kernel.c b/Part3/09_memory/kernel/kernel.c
index 8286976..c0a7c51 100644
--- a/Part3/09_memory/kernel/kernel.c
+++ b/Part3/09_memory/kernel/kernel.c
@@ -213,7 +213,8 @@ void print_memory(node *umem_head, node *hole_head) {
 
 node* get_holes(node* umem_head) {
     if (umem_head == NULL) {
-        node *hole = add_node(hole, 0x10000, 0x3FFFF, true, 0);
+        node *hole = NULL;
+        hole = add_node(hole, 0x10000, 0x3FFFF, true, 0);
         return hole;
     }
     u32 hole_ids = 0;