diff --git a/Makefile.inc b/Makefile.inc
index 9a34c61..0d38ea3 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -615,6 +615,8 @@
 
 APCB_V3_EDIT_TOOL:=$(top)/util/apcb/apcb_v3_edit.py
 
+APCB_V3A_EDIT_TOOL:=$(top)/util/apcb/apcb_v3a_edit.py
+
 CBOOTIMAGE:=$(objutil)/cbootimage/cbootimage
 
 FUTILITY?=$(objutil)/futility/futility