diff --git a/avrpins.h b/avrpins.h
index b1c75238..ec4ae672 100644
--- a/avrpins.h
+++ b/avrpins.h
@@ -1328,8 +1328,6 @@ MAKE_PIN(P13, 13); //
 
 #elif defined(ESP8266) || defined(ESP32)
 
-#define pgm_read_pointer(p) pgm_read_ptr(p)
-
 #define MAKE_PIN(className, pin) \
 class className { \
 public: \
@@ -1418,6 +1416,12 @@ MAKE_PIN(P17, 17); // INT
 
 #undef MAKE_PIN
 
+// pgm_read_ptr is not defined in the ESP32, so we have to undef the diffinition from version_helper.h
+#ifdef pgm_read_pointer
+#undef pgm_read_pointer
+#endif
+#define pgm_read_pointer(p) pgm_read_ptr(p)
+
 #else
 #error "Please define board in avrpins.h"