diff --git a/libraries/SPI/src/SPI.h b/libraries/SPI/src/SPI.h
index 89461bb..8c1d816 100644
--- a/libraries/SPI/src/SPI.h
+++ b/libraries/SPI/src/SPI.h
@@ -33,12 +33,6 @@
 
 #define SPI_DEFAULT_SPEED   4000000
 
-#ifndef LSBFIRST
-#define LSBFIRST 0
-#endif
-#ifndef MSBFIRST
-#define MSBFIRST 1
-#endif
 
 // dividers for setClockDivider()
 #define SPI_CLOCK_DIV4    0x01    // 8 MHz