diff --git a/Makefile b/Makefile
index 7368ca5..4ef02c6 100644
--- a/Makefile
+++ b/Makefile
@@ -1058,6 +1058,7 @@
 # Variables for use with PRINT_MEMORY_MAP
 PRINT_MEMORY_MAP_PATH		?=	tools/memory
 PRINT_MEMORY_MAP		?=	${PRINT_MEMORY_MAP_PATH}/print_memory_map.py
+INVERTED_MEMMAP			?=	0
 
 # Variables for use with documentation build using Sphinx tool
 DOCS_PATH		?=	docs