diff --git a/objects/pflash/ccan/build_assert/test/compile_fail.c b/objects/pflash/ccan/build_assert/test/compile_fail.c
new file mode 100644
index 0000000..f29c3fd
--- /dev/null
+++ b/objects/pflash/ccan/build_assert/test/compile_fail.c
@@ -0,0 +1,9 @@
+#include <ccan/build_assert/build_assert.h>
+
+int main(int argc, char *argv[])
+{
+#ifdef FAIL
+	BUILD_ASSERT(1 == 0);
+#endif
+	return 0;
+}