diff --git a/libraries/ESP8266WiFi/src/WiFiClient.cpp b/libraries/ESP8266WiFi/src/WiFiClient.cpp
index 672fff4b2..c2c6966f2 100644
--- a/libraries/ESP8266WiFi/src/WiFiClient.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiClient.cpp
@@ -38,7 +38,6 @@ extern "C"
 #include "lwip/tcp.h"
 #include "lwip/inet.h"
 #include "lwip/netif.h"
-#include "cbuf.h"
 #include "include/ClientContext.h"
 #include "c_types.h"
 
diff --git a/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp b/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp
index 484a23fc0..bf4252275 100644
--- a/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp
@@ -37,7 +37,6 @@ extern "C"
 #include "lwip/tcp.h"
 #include "lwip/inet.h"
 #include "lwip/netif.h"
-#include "cbuf.h"
 #include "include/ClientContext.h"
 #include "c_types.h"
 
diff --git a/libraries/ESP8266WiFi/src/WiFiServer.cpp b/libraries/ESP8266WiFi/src/WiFiServer.cpp
index 462e7d7de..c58a91476 100644
--- a/libraries/ESP8266WiFi/src/WiFiServer.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiServer.cpp
@@ -35,7 +35,6 @@ extern "C" {
 #include "lwip/opt.h"
 #include "lwip/tcp.h"
 #include "lwip/inet.h"
-#include "cbuf.h"
 #include "include/ClientContext.h"
 
 WiFiServer::WiFiServer(IPAddress addr, uint16_t port)