diff --git a/src/lib.rs b/src/lib.rs
index 682b04d..9b52a2d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -110,6 +110,7 @@ where
 
         ili9341.set_orientation(Orientation::Portrait)?;
 
+        // Set pixel format to 16 bits per pixel
         ili9341.command(Command::PixelFormatSet, &[0x55])?;
 
         ili9341.command(Command::SleepOut, &[])?;