diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiType.h b/libraries/ESP8266WiFi/src/ESP8266WiFiType.h
index a5b10e93e..03e16bea6 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiType.h
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiType.h
@@ -40,7 +40,7 @@ typedef enum {
 } WiFiPhyMode_t;
 
 typedef enum {
-    WIFI_NONE_SLEEP = 0, WIFI_LIGHT_SLEEP = 2, WIFI_MODEM_SLEEP = 3
+    WIFI_NONE_SLEEP = 0, WIFI_LIGHT_SLEEP =1, WIFI_MODEM_SLEEP = 2
 } WiFiSleepType_t;