diff --git a/subjects/java/checkpoints/good-bye-mars/README.md b/subjects/java/checkpoints/goodbye-mars/README.md
similarity index 90%
rename from subjects/java/checkpoints/good-bye-mars/README.md
rename to subjects/java/checkpoints/goodbye-mars/README.md
index 252cf449..8b69f364 100644
--- a/subjects/java/checkpoints/good-bye-mars/README.md
+++ b/subjects/java/checkpoints/goodbye-mars/README.md
@@ -2,7 +2,7 @@
 
 ### Instructions
 
-In a file named `GoodbyeMars.java` write a function `goodbyeMars` that returns the string 'Good bye Mars !'.
+In a file named `GoodbyeMars.java` write a function `goodbyeMars` that returns the string 'Goodbye Mars !'.
 
 ### Expected Functions
 
@@ -31,6 +31,6 @@ and its output :
 ```shell
 $ javac *.java -d build
 $ java -cp build ExerciseRunner
-Good bye Mars !
+Goodbye Mars !
 $
 ```