diff --git a/lib/lib_audio/ESP8266Audio/src/AudioOutputI2S.cpp b/lib/lib_audio/ESP8266Audio/src/AudioOutputI2S.cpp
index cec3abe75..cd915f58b 100644
--- a/lib/lib_audio/ESP8266Audio/src/AudioOutputI2S.cpp
+++ b/lib/lib_audio/ESP8266Audio/src/AudioOutputI2S.cpp
@@ -22,7 +22,7 @@
 #ifdef ESP32
   #include "driver/i2s.h"
 #elif defined(ARDUINO_ARCH_RP2040) || defined(ESP8266)
-  #include <I2S.h>
+  #include <i2s.h>
 #endif
 #include "AudioOutputI2S.h"
 
diff --git a/lib/lib_audio/ESP8266Audio/src/AudioOutputI2SNoDAC.cpp b/lib/lib_audio/ESP8266Audio/src/AudioOutputI2SNoDAC.cpp
index c38b4b5f0..774602fd9 100644
--- a/lib/lib_audio/ESP8266Audio/src/AudioOutputI2SNoDAC.cpp
+++ b/lib/lib_audio/ESP8266Audio/src/AudioOutputI2SNoDAC.cpp
@@ -22,7 +22,7 @@
 #ifdef ESP32
   #include "driver/i2s.h"
 #elif defined(ARDUINO_ARCH_RP2040) || defined(ESP8266)
-  #include <I2S.h>
+  #include <i2s.h>
 #endif
 #include "AudioOutputI2SNoDAC.h"