diff --git a/include/ChangeLog b/include/ChangeLog
index 98fea92b9..9e079f625 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2008-01-23  Eric B. Weddington  <eric.weddington@atmel.com>
+
+	* opcode/avr.h (AVR_ISA_RF401): Add new opcode set for at86rf401.
+
 2008-01-03  Eric B. Weddington  <eric.weddington@atmel.com>
 
 	* opcode/avr.h (AVR_ISA_USB162): Add new opcode set.
diff --git a/include/opcode/avr.h b/include/opcode/avr.h
index 50a41a0f7..7f7ee0c35 100644
--- a/include/opcode/avr.h
+++ b/include/opcode/avr.h
@@ -34,6 +34,7 @@
 #define AVR_ISA_TINY1 (AVR_ISA_1200 | AVR_ISA_LPM)
 #define AVR_ISA_PWMx  (AVR_ISA_M8   | AVR_ISA_BRK)
 #define AVR_ISA_2xxx  (AVR_ISA_TINY1 | AVR_ISA_SRAM)
+#define AVR_ISA_RF401 (AVR_ISA_2xxx | AVR_ISA_MOVW | AVR_ISA_LPMX)
 #define AVR_ISA_TINY2 (AVR_ISA_2xxx | AVR_ISA_MOVW | AVR_ISA_LPMX | \
                        AVR_ISA_SPM  | AVR_ISA_BRK)
 #define AVR_ISA_M8    (AVR_ISA_2xxx | AVR_ISA_MUL | AVR_ISA_MOVW | \