diff --git a/libraries/ESP8266WiFi/src/WiFiClient.cpp b/libraries/ESP8266WiFi/src/WiFiClient.cpp
index 6be20c1dc..f266597a2 100644
--- a/libraries/ESP8266WiFi/src/WiFiClient.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiClient.cpp
@@ -275,6 +275,7 @@ void WiFiClient::stop()
     if (!_client)
         return;
 
+    flush();
     _client->close();
 }