diff --git a/subjects/addprimesum.md b/subjects/addprimesum.en.md
similarity index 71%
rename from subjects/addprimesum.md
rename to subjects/addprimesum.en.md
index 344cf856..baa1cf9a 100644
--- a/subjects/addprimesum.md
+++ b/subjects/addprimesum.en.md
@@ -4,9 +4,9 @@
 
 Write a program that takes a positive integer as argument and displays the sum of all prime numbers inferior or equal to it followed by a newline.
 
-- If the number of arguments is not 1, or the argument is not a positive number, just display 0 followed by a newline.
+- If the number of arguments is not 1, or if the argument is not a positive number, the program displays 0 followed by a newline.
 
-Example of output :
+Examples of outputs :
 
 ```console
 student@ubuntu:~/piscine/test$ go build
@@ -17,4 +17,4 @@ student@ubuntu:~/piscine/test$ ./test 7
 student@ubuntu:~/piscine/test$ ./test 57
 0
 student@ubuntu:~/piscine/test$
-```
\ No newline at end of file
+```