diff --git a/libraries/MySensors/drivers/AES/AES_config.h b/libraries/MySensors/drivers/AES/AES_config.h
index 62eb13b..d0ae828 100644
--- a/libraries/MySensors/drivers/AES/AES_config.h
+++ b/libraries/MySensors/drivers/AES/AES_config.h
@@ -31,6 +31,8 @@
 	#define PSTR(x) (x)
 #elif defined(ARDUINO_ARCH_ESP8266)
 	#include <pgmspace.h>
+#elif defined(ARDUINO_ARCH_SAMD)
+	#define printf_P printf
 #else
 	#include <avr/pgmspace.h>
 #endif