diff --git a/data_encoder/example/data_encoder_cli.dart b/data_encoder/example/data_encoder_cli.dart
index cef758f..c8a7170 100644
--- a/data_encoder/example/data_encoder_cli.dart
+++ b/data_encoder/example/data_encoder_cli.dart
@@ -51,7 +51,7 @@ void main(List<String> args) {
 
   switch (action) {
     case 'encode':
-      print('Input length: \${data.length}');
+      print('Input length: ${data.length}');
       final resultBytes = encoder.encode(data);
       print('Result bytes (hex): ${hex.encode(resultBytes)}');
       print('Result length (bytes): ${resultBytes.length}');