diff --git a/src/DFRobot_BMX160.h b/src/DFRobot_BMX160.h
index 7ab41f2..067f7ff 100644
--- a/src/DFRobot_BMX160.h
+++ b/src/DFRobot_BMX160.h
@@ -13,7 +13,9 @@
 #include <Wire.h>
 #include <SPI.h>
 
+#ifndef LITTLE_ENDIAN
 #define LITTLE_ENDIAN 1
+#endif
 
 /** Mask definitions */
 #define BMX160_ACCEL_BW_MASK 0x70