diff --git a/MEMORY.md b/MEMORY.md
index a674fd1..6a14da9 100644
--- a/MEMORY.md
+++ b/MEMORY.md
@@ -10,7 +10,8 @@ To not have to allocate a ton of things at run time the Standard Library uses a
 | `0x16` | Zero Page |
 | `0x100` | User Code |
 | `?` | Library Code |
-| `0x1_0000` | heap |
+| `0x1_0000` | LUTs |
+| `?` | heap |
 | `0xXXF0_0000` | Stack |
 | `0xXXFF_0000` | quick access |