diff --git a/libraries/ESP8266WebServer/src/ESP8266WebServer.cpp b/libraries/ESP8266WebServer/src/ESP8266WebServer.cpp
index 326ed24bc..2bd6bbea1 100644
--- a/libraries/ESP8266WebServer/src/ESP8266WebServer.cpp
+++ b/libraries/ESP8266WebServer/src/ESP8266WebServer.cpp
@@ -169,6 +169,13 @@ void ESP8266WebServer::send_P(int code, PGM_P content_type, PGM_P content) {
     sendContent_P(content);
 }
 
+void ESP8266WebServer::send_P(int code, PGM_P content_type, PGM_P content, size_t contentLength) {
+    String header;
+    _prepareHeader(header, code, String(FPSTR(content_type)).c_str(), contentLength);
+    sendContent(header);
+    sendContent_P(content, contentLength);
+}
+
 void ESP8266WebServer::send(int code, char* content_type, const String& content) {
   send(code, (const char*)content_type, content);
 }
diff --git a/libraries/ESP8266WebServer/src/ESP8266WebServer.h b/libraries/ESP8266WebServer/src/ESP8266WebServer.h
index 4f455c377..fad9fc55c 100644
--- a/libraries/ESP8266WebServer/src/ESP8266WebServer.h
+++ b/libraries/ESP8266WebServer/src/ESP8266WebServer.h
@@ -90,6 +90,7 @@ public:
   void send(int code, char* content_type, const String& content);
   void send(int code, const String& content_type, const String& content);
   void send_P(int code, PGM_P content_type, PGM_P content);
+  void send_P(int code, PGM_P content_type, PGM_P content, size_t contentLength);
 
   void setContentLength(size_t contentLength) { _contentLength = contentLength; }
   void sendHeader(const String& name, const String& value, bool first = false);