diff --git a/subjects/printstr/README.md b/subjects/printstr/README.md
index 1e8278b8b..eae7f5c30 100644
--- a/subjects/printstr/README.md
+++ b/subjects/printstr/README.md
@@ -31,6 +31,6 @@ And its output :
 ```console
 student@ubuntu:~/[[ROOT]]/test$ go build
 student@ubuntu:~/[[ROOT]]/test$ ./test | cat -e
-Hello World!$
+Hello World!%
 student@ubuntu:~/[[ROOT]]/test$
 ```