diff --git a/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.cpp b/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.cpp
index dc649f55ed..eb86997189 100644
--- a/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.cpp
+++ b/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.cpp
@@ -5,7 +5,7 @@ extern "C"{
 #include <ets_sys.h>
 #include <os_type.h>
 #include <osapi.h>
-#include "driver\hspi.h"
+#include "driver/hspi.h"
 }
 
 #define SWAPBYTES(i) ((i>>8) | (i<<8))
diff --git a/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.h b/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.h
index 17ed41197f..fdf5a50ece 100644
--- a/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.h
+++ b/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.h
@@ -8,7 +8,7 @@ extern "C"
 #include <c_types.h>
 #include <osapi.h>
 #include <gpio.h>
-#include "driver\hspi.h"
+#include "driver/hspi.h"
 }
 
 #define ILI9341_TFTWIDTH  240
diff --git a/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/hspi.c b/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/hspi.c
index e12310cb6f..506c62bb88 100644
--- a/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/hspi.c
+++ b/hardware/esp8266com/esp8266/libraries/Adafruit_ILI9341/hspi.c
@@ -1,4 +1,4 @@
-#include "driver\hspi.h"
+#include "driver/hspi.h"
 
 /*
 Pinout: