diff --git a/subjects/addprimesum.en.md b/subjects/addprimesum.en.md
index f11d9943..c6c5dafe 100644
--- a/subjects/addprimesum.en.md
+++ b/subjects/addprimesum.en.md
@@ -16,5 +16,7 @@ student@ubuntu:~/[[ROOT]]/test$ ./test 7
 17
 student@ubuntu:~/[[ROOT]]/test$ ./test 5 7
 0
-student@ubuntu:~/[[ROOT]]/test$
+student@ubuntu:~/[[ROOT]]/test$ ./test
+0
+student@ubuntu:~/[[ROOT]]/test$ 
 ```