diff --git a/examples/HID/scale/scale_rptparser.cpp b/examples/HID/scale/scale_rptparser.cpp
index f88d21ac..d9e00bc2 100644
--- a/examples/HID/scale/scale_rptparser.cpp
+++ b/examples/HID/scale/scale_rptparser.cpp
@@ -1,5 +1,7 @@
 /* Parser for standard HID scale (usage page 0x8d) data input report (ID 3) */ 
+#ifdef ARDUINO_SAM_DUE
 #include <avr/dtostrf.h>
+#endif
 #include "scale_rptparser.h"
 
 const char* UNITS[13] = {