diff --git a/README.md b/README.md
index d180f1985ed09bdb8f3c1033b7af20d96bebe4d5..13ea7a3c5d8b281b1d6d2f09577a7dc173f81d8e 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ This code uses the [Arduino pico](https://github.com/earlephilhower/arduino-pico
 
 ## Code
 
-```C++
+```cpp
 #include <Adafruit_TinyUSB.h>
 #include <I2S.h>