diff --git a/src/JsonStruct.h b/src/JsonStruct.h
index 3488152..cee2114 100644
--- a/src/JsonStruct.h
+++ b/src/JsonStruct.h
@@ -3,7 +3,9 @@
 
 #include <ArduinoJson.h>
 #include <FS.h>
-
+#ifdef ESP32
+#include "SPIFFS.h"
+#endif
 
 struct JsonStruct {
     int valid = 0;