diff --git a/arch/avr/include/avr/irq.h b/arch/avr/include/avr/irq.h
index 9e95edbec5f..9c8ec670afc 100644
--- a/arch/avr/include/avr/irq.h
+++ b/arch/avr/include/avr/irq.h
@@ -117,6 +117,9 @@ struct xcptcontext
 
   uint8_t saved_pc1;
   uint8_t saved_pc0;
+# if defined(REG_PC2)
+  uint8_t saved_pc2;
+# endif   
   uint8_t saved_sreg;
 #endif