diff --git a/subjects/doop.en.md b/subjects/doop.en.md
index b79b2f617..668d6d592 100644
--- a/subjects/doop.en.md
+++ b/subjects/doop.en.md
@@ -34,7 +34,7 @@ student@ubuntu:~/piscine-go/test$ ./doop 1 p 1 | cat -e
 student@ubuntu:~/piscine-go/test$ ./doop 1 / 0 | cat -e
 No division by 0$
 student@ubuntu:~/piscine-go/test$ ./doop 1 % 0 | cat -e
-No Modulo by 0$
+No modulo by 0$
 student@ubuntu:~/piscine-go/test$ ./doop 9223372036854775807 + 1
 0
 student@ubuntu:~/piscine-go/test$ ./doop -9223372036854775809 - 3
diff --git a/subjects/doop.fr.md b/subjects/doop.fr.md
index d7dc77c6c..56d5ee3e4 100644
--- a/subjects/doop.fr.md
+++ b/subjects/doop.fr.md
@@ -32,7 +32,7 @@ student@ubuntu:~/piscine-go/test$ ./doop 1 p 1 | cat -e
 student@ubuntu:~/piscine-go/test$ ./doop 1 / 0 | cat -e
 No division by 0$
 student@ubuntu:~/piscine-go/test$ ./doop 1 % 0 | cat -e
-No Modulo by 0$
+No modulo by 0$
 student@ubuntu:~/piscine-go/test$ ./doop 1 "*" 1
 1
 student@ubuntu:~/piscine-go/test$ ./doop 1 "*" -1