diff --git a/portable/GCC/ATMega323/portmacro.h b/portable/GCC/ATMega323/portmacro.h
index 482fc8e..d02e39e 100644
--- a/portable/GCC/ATMega323/portmacro.h
+++ b/portable/GCC/ATMega323/portmacro.h
@@ -22,7 +22,6 @@
  * https://www.FreeRTOS.org
  * https://github.com/FreeRTOS
  *
- * 1 tab == 4 spaces!
  */
 
 /*
@@ -58,6 +57,8 @@
 #define portSTACK_TYPE	uint8_t
 #define portBASE_TYPE	char
 
+#define portPOINTER_SIZE_TYPE    uint16_t
+
 typedef portSTACK_TYPE StackType_t;
 typedef signed char BaseType_t;
 typedef unsigned char UBaseType_t;