diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index 91eeb16bc..13ee197cb 100644
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -108,11 +108,12 @@ void yield(void);
#define lowByte(w) ((uint8_t) ((w) & 0xff))
#define highByte(w) ((uint8_t) ((w) >> 8))
-#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
-#define bitSet(value, bit) ((value) |= (1UL << (bit)))
-#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
-#define bitToggle(value, bit) ((value) ^= (1UL << (bit)))
-#define bitWrite(value, bit, bitvalue) ((bitvalue) ? bitSet(value, bit) : bitClear(value, bit))
+#define bit(b) (1UL << (b))
+#define bitRead(value, b) (((value) >> (b)) & 0x01)
+#define bitSet(value, b) ((value) |= bit(b))
+#define bitClear(value, b) ((value) &= ~bit(b))
+#define bitToggle(value, b) ((value) ^= bit(b))
+#define bitWrite(value, b, bitvalue) ((bitvalue) ? bitSet(value, b) : bitClear(value, b))
// avr-libc defines _NOP() since 1.6.2
#ifndef _NOP
@@ -121,8 +122,6 @@ void yield(void);
typedef unsigned int word;
-#define bit(b) (1UL << (b))
-
typedef bool boolean;
typedef uint8_t byte;
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