diff --git a/src/app/definition.h b/src/app/definition.h
index 8022c5e..acfa705 100644
--- a/src/app/definition.h
+++ b/src/app/definition.h
@@ -43,6 +43,9 @@ typedef enum {  GPIO_0 = 0,
 //SD card file structure :
 #define AP_CFG_FILE "/CONFIG/AP.CFG"
 #define STA_CFG_FILE "/CONFIG/STA.CFG"
+#define WWW_DIR "/WWW"
+#define LOG_DIR "/LOGS"
+#define FTP_DIR "/FTP"
 
 typedef enum { OR_0 = 2, OR_90 = 3, OR_180 = 0, OR_270 = 1 } Orientation;