diff --git a/analog-arm.c b/analog-lpc.c
similarity index 96%
rename from analog-arm.c
rename to analog-lpc.c
index 64a1577..a82e381 100644
--- a/analog-arm.c
+++ b/analog-lpc.c
@@ -11,7 +11,7 @@
   always compares against Vdd. This is the equivalent of REFERENCE_AVCC on AVR.
 */
 
-#if defined TEACUP_C_INCLUDE && defined __ARMEL__
+#if defined TEACUP_C_INCLUDE && defined __ARM_LPC1114__
 
 #include "cmsis-lpc11xx.h"
 #include "arduino.h"
@@ -85,4 +85,4 @@ uint16_t analog_read(uint8_t index) {
   return result;
 }
 
-#endif /* defined TEACUP_C_INCLUDE && defined __ARMEL__ */
+#endif /* defined TEACUP_C_INCLUDE && defined __ARM_LPC1114__ */
diff --git a/analog.c b/analog.c
index 3043af3..243f045 100644
--- a/analog.c
+++ b/analog.c
@@ -35,7 +35,7 @@ static uint8_t adc_channel[NUM_TEMP_SENSORS] = {
 
 #define TEACUP_C_INCLUDE
 #include "analog-avr.c"
-#include "analog-arm.c"
+#include "analog-lpc.c"
 #undef TEACUP_C_INCLUDE
 
 // No common code so far.