diff --git a/build/shared/lib/keywords.txt b/build/shared/lib/keywords.txt
index 770acfbd8..62da3eb43 100644
--- a/build/shared/lib/keywords.txt
+++ b/build/shared/lib/keywords.txt
@@ -19,7 +19,9 @@ FALLING	LITERAL1	AttachInterrupt
 RISING	LITERAL1	AttachInterrupt
 DEFAULT	LITERAL1	AnalogReference
 EXTERNAL	LITERAL1	AnalogReference
-INTERAL	LITERAL1	AnalogReference
+INTERNAL	LITERAL1	AnalogReference
+INTERNAL1V1	LITERAL1	AnalogReference
+INTERNAL2V56	LITERAL1	AnalogReference
 
 # KEYWORD1 specifies datatypes and C/C++ keywords
 
diff --git a/build/shared/revisions.txt b/build/shared/revisions.txt
index e7496bc56..f5bb63ba5 100644
--- a/build/shared/revisions.txt
+++ b/build/shared/revisions.txt
@@ -20,6 +20,9 @@ ARDUINO 0019
 
 * Disabling interrupts while digitalWrite() and pinMode() write to pins.
   http://code.google.com/p/arduino/issues/detail?id=146
+
+* Replacing INTERNAL analog reference with INTERNAL1V1 AND INTERNAL2V56 on
+  the Arduino Mega.  http://code.google.com/p/arduino/issues/detail?id=194
  
 [environment]
 
@@ -30,6 +33,8 @@ ARDUINO 0019
 
 * Synchronized with the Processing 1.1 code base, bringing various changes.
 
+* Modified the parsing of avr-gcc / avr-g++ output and error messages.
+
 * Adding control over scrolling in serial monitor.
   http://code.google.com/p/arduino/issues/detail?id=97
 
diff --git a/hardware/arduino/cores/arduino/wiring.h b/hardware/arduino/cores/arduino/wiring.h
index edc9704ba..d0ce1c314 100755
--- a/hardware/arduino/cores/arduino/wiring.h
+++ b/hardware/arduino/cores/arduino/wiring.h
@@ -57,7 +57,12 @@ extern "C"{
 #define FALLING 2
 #define RISING 3
 
+#if defined(__AVR_ATmega1280__)
+#define INTERNAL1V1 2
+#define INTERNAL2V56 3
+#else
 #define INTERNAL 3
+#endif
 #define DEFAULT 1
 #define EXTERNAL 0