diff --git a/src/WiFiConfig.cpp b/src/WiFiConfig.cpp
index a514cf7..93a6d04 100644
--- a/src/WiFiConfig.cpp
+++ b/src/WiFiConfig.cpp
@@ -5,6 +5,21 @@
 #include <sysvars.hpp>
 #include "embHTML.h"
 #include <encString.hpp>
+#include <FS.h>
+#ifndef USEDFS
+# if defined(ESP32)
+#  ifdef USE_LITTLEFS
+#   include <LITTLEFS.h>
+#   define USEDFS LITTLEFS
+#  else
+#   include <SPIFFS.h>
+#   define USEDFS SPIFFS
+#  endif
+# else
+#  include <LittleFS.h>
+#  define USEDFS LittleFS
+# endif
+#endif
 
 #if defined(ESP8266)
 // ESP8266