diff --git a/examples/blits.rs b/examples/blits.rs
index ca70489..552dcf7 100644
--- a/examples/blits.rs
+++ b/examples/blits.rs
@@ -6,6 +6,7 @@
 //! alignment signal.
 //! 
 //! TODO: Pre-calculate the sine waves to speed up generation
+//! TODO: Implement command-line interface
 
 use std::f64;
 use bwavfile::{WaveWriter, WaveFmt};
@@ -219,4 +220,4 @@ fn main() -> () {
     }
     fw.end().expect("Failed to close frame writer");
 
-}
\ No newline at end of file
+}