diff --git a/libesp32/ESP32-to-ESP8266-compat/src/ESP8266httpUpdate.h b/libesp32/ESP32-to-ESP8266-compat/src/ESP8266httpUpdate.h
index ace3a2eeb..0ef8fbbb0 100644
--- a/libesp32/ESP32-to-ESP8266-compat/src/ESP8266httpUpdate.h
+++ b/libesp32/ESP32-to-ESP8266-compat/src/ESP8266httpUpdate.h
@@ -1,7 +1,7 @@
 //
 // Compat with ESP32
 //
-#include <httpUpdate.h>
+#include <HTTPUpdate.h>
 #define ESPhttpUpdate httpUpdate
 
 inline HTTPUpdateResult ESPhttpUpdate_update(const String& url, const String& currentVersion = "")