diff --git a/Part3/09_memory/kernel/kernel.c b/Part3/09_memory/kernel/kernel.c
index c575caa..4842395 100644
--- a/Part3/09_memory/kernel/kernel.c
+++ b/Part3/09_memory/kernel/kernel.c
@@ -162,7 +162,7 @@ void print_holes(node* umem_head) {
 
     while(umem_head != NULL) {
         if (umem_head->base_register - 0x10000 != 0) {
-            node *hole = add_node( hole, 0x10000, unem_head->base_register-0x10000, true, -1);
+            node *hole = add_node( hole, 0x10000, enum_head->base_register-0x10000, true, -1);
             print_list(hole, false);
         }
     }