diff --git a/Makefile b/Makefile
index d931df0..40d43bd 100644
--- a/Makefile
+++ b/Makefile
@@ -11,6 +11,9 @@
 ifneq ($(HAVE_SECUREBITS_H),no)
 CFLAGS += -DHAVE_SECUREBITS_H
 endif
+ifneq ($(USE_seccomp),yes)
+CFLAGS += -DUSE_SECCOMP_SOFTFAIL
+endif
 
 all : minijail0 libminijail.so libminijailpreload.so