diff --git a/objects/pflash/ccan/endian/test/compile_ok-constant.c b/objects/pflash/ccan/endian/test/compile_ok-constant.c
new file mode 100644
index 0000000..93b5a03
--- /dev/null
+++ b/objects/pflash/ccan/endian/test/compile_ok-constant.c
@@ -0,0 +1,12 @@
+#include <ccan/endian/endian.h>
+
+struct foo {
+	char one[BSWAP_16(0xFF00)];
+	char two[BSWAP_32(0xFF000000)];
+	char three[BSWAP_64(0xFF00000000000000ULL)];
+};
+
+int main(void)
+{
+	return 0;
+}