diff --git a/firmware/drivers/audio/wm8731.c b/firmware/drivers/audio/wm8731.c
index e051fc4bb7..e0e7cb38c0 100644
--- a/firmware/drivers/audio/wm8731.c
+++ b/firmware/drivers/audio/wm8731.c
@@ -177,7 +177,7 @@ void audiohw_postinit(void)
 {
     sleep(HZ);
 
-    /* 4) Set the �Active� bit in register 12h. */
+    /* 4) Set the 'Active' bit in register 12h. */
     codec_set_active(true);
 
     audiohw_mute(false);