diff --git a/libraries/MySensors/drivers/AES/AES_config.h b/libraries/MySensors/drivers/AES/AES_config.h
index 242c841..62eb13b 100644
--- a/libraries/MySensors/drivers/AES/AES_config.h
+++ b/libraries/MySensors/drivers/AES/AES_config.h
@@ -29,6 +29,8 @@
 	typedef unsigned char byte;
 	#define printf_P printf
 	#define PSTR(x) (x)
+#elif defined(ARDUINO_ARCH_ESP8266)
+	#include <pgmspace.h>
 #else
 	#include <avr/pgmspace.h>
 #endif