diff --git a/Makefile b/Makefile
index fa711e2..6e14bdc 100644
--- a/Makefile
+++ b/Makefile
@@ -451,8 +451,10 @@
 
 include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
 
-BUILD_BASE		:=	./build
-BUILD_PLAT		:=	${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
+ifeq (${BUILD_BASE},)
+     BUILD_BASE		:=	./build
+endif
+BUILD_PLAT		:=	$(abspath ${BUILD_BASE})/${PLAT}/${BUILD_TYPE}
 
 SPDS			:=	$(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*))))