diff --git a/make/defs.mk b/make/defs.mk
index 8d6d0531..4cbc0427 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -288,6 +288,7 @@ INSTALLED_MAKE        += $(addprefix $(INSTALL_MAKEDIR)/,$(MKFILES))
 # -- IMG
 BUILD_LIBDIR          ?= .
 BUILD_IMG             ?= 
+BUILD_IMGDIR          ?= $(TOPDIR)/images
 INSTALL_IMGDIR        ?= $(IMG_PREFIX)/images
 INSTALLED_IMG         ?= $(addprefix $(INSTALL_IMGDIR)/,$(IMAGES))