diff --git a/cfg/avr.cfg b/cfg/avr.cfg
index 51296c4c4..ba754787f 100644
--- a/cfg/avr.cfg
+++ b/cfg/avr.cfg
@@ -4,6 +4,8 @@
   <!-- Integer types capable of holding object pointers -->
   <podtype name="intptr_t" sign="s" size="2"/>
   <podtype name="uintptr_t" sign="u" size="2"/>
+  <podtype name="int_farptr_t" sign="s" size="4"/>
+  <podtype name="uint_farptr_t" sign="u" size="4"/>
   <!-- Minimum-width integer types -->
   <podtype name="int_least8_t" sign="s" size="1"/>
   <podtype name="uint_least8_t" sign="u" size="1"/>
@@ -15,5 +17,5 @@
   <podtype name="uint_least64_t" sign="u" size="8"/>
   <!-- Greatest-width integer types -->
   <podtype name="intmax_t" sign="s" size="8"/>
-  <podtype name="uintmax_t" sign="u" size="8"/>    
+  <podtype name="uintmax_t" sign="u" size="8"/>   
 </def>