diff --git a/Makefile b/Makefile
index 9c0ab72..8a1ff94 100644
--- a/Makefile
+++ b/Makefile
@@ -172,7 +172,7 @@
 ASFLAGS_aarch32		=	$(march32-directive)
 ASFLAGS_aarch64		=	-march=armv8-a
 
-CPPFLAGS		=	${DEFINES} ${INCLUDES} -nostdinc		\
+CPPFLAGS		=	${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc		\
 				-Wmissing-include-dirs -Werror
 ASFLAGS			+=	$(CPPFLAGS) $(ASFLAGS_$(ARCH))			\
 				-D__ASSEMBLY__ -ffreestanding 			\
diff --git a/drivers/auth/mbedtls/mbedtls_common.mk b/drivers/auth/mbedtls/mbedtls_common.mk
index 67a5da2..71c496e 100644
--- a/drivers/auth/mbedtls/mbedtls_common.mk
+++ b/drivers/auth/mbedtls/mbedtls_common.mk
@@ -13,8 +13,8 @@
   $(error Error: MBEDTLS_DIR not set)
 endif
 
-INCLUDES		+=	-I${MBEDTLS_DIR}/include		\
-				-Iinclude/drivers/auth/mbedtls
+MBEDTLS_INC		=	-I${MBEDTLS_DIR}/include
+INCLUDES		+=     -Iinclude/drivers/auth/mbedtls
 
 # Specify mbed TLS configuration file
 MBEDTLS_CONFIG_FILE	:=	"<mbedtls_config.h>"