diff --git a/subjects/vowels-index/README.md b/subjects/vowels-index/README.md
index 9bb254ff..dc5cd4d6 100644
--- a/subjects/vowels-index/README.md
+++ b/subjects/vowels-index/README.md
@@ -31,9 +31,9 @@ And its output :
 ```console
 
 $ go run . 
-1 $
-4 $
-6 $
-8 $
+1$
+4$
+6$
+8$
 ```