diff --git a/Shell.h b/Shell.h
index 1f1980f..1152275 100644
--- a/Shell.h
+++ b/Shell.h
@@ -29,7 +29,7 @@
 
 #ifdef ARDUINO
 #include <Arduino.h>
-#ifdef ESP8266
+#if defined(ESP8266) || defined(ESP32)
 #include <pgmspace.h>
 #else
 #include <avr/pgmspace.h>