diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index 2ec1bb772bd7beeb21b52bdcb404f414b5d798ed..02ce4a44109b3d712f9b4ad4c29206ef662696d1 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -17,5 +17,5 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 # MA 02111-1307 USA
 
-PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__
+PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__ -U_FORTIFY_SOURCE
 PLATFORM_LIBS += -lrt