diff --git a/lib/lib_audio/ESP8266Audio/src/libwebm/mkvmuxer/mkvwriter.h b/lib/lib_audio/ESP8266Audio/src/libwebm/mkvmuxer/mkvwriter.h
index 8ea2e24f3..b242505cc 100644
--- a/lib/lib_audio/ESP8266Audio/src/libwebm/mkvmuxer/mkvwriter.h
+++ b/lib/lib_audio/ESP8266Audio/src/libwebm/mkvmuxer/mkvwriter.h
@@ -12,7 +12,7 @@
 #ifdef ESP32
 #include <stdio.h>
 
-#include "Fs.h"
+#include <FS.h>
 #include "mkvmuxer.h"
 #include "mkvmuxertypes.h"