diff --git a/subjects/union/README.md b/subjects/union/README.md
index b66993e7..d703d92a 100644
--- a/subjects/union/README.md
+++ b/subjects/union/README.md
@@ -19,6 +19,7 @@ df6vewg4thras$
 $
 $ go run . rien "cette phrase ne cache rien" | cat -e
 rienct phas$
+$
 $ go run . | cat -e
 $
 $ go run . rien | cat -e