diff --git a/subjects/java/piscine/CatInFile/README.md b/subjects/java/piscine/CatInFile/README.md
index 864af26a2..c042d566e 100644
--- a/subjects/java/piscine/CatInFile/README.md
+++ b/subjects/java/piscine/CatInFile/README.md
@@ -28,6 +28,8 @@ Here is a possible ExerciseRunner.java to test your function :
 
 ```java
 import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Paths;
 
 public class ExerciseRunner {
     public static void main(String[] args) throws IOException {