diff --git a/02-gitlab-clone/README.md b/02-gitlab-clone/README.md
index f8795829d2512f4aaa85f1ba9afc9c4f61fd2b14..d334965022329a41bdea9dcf40eb06b8960dd244 100644
--- a/02-gitlab-clone/README.md
+++ b/02-gitlab-clone/README.md
@@ -37,7 +37,7 @@ The command may ask you for your GitLab username and your password.
 
 ## Cloning using SSH
 
-Using SSH to interact with the repository required you to copy an SSH key file to GitLab. If you have no such key, you will have to generate it.
+Using SSH to interact with the repository required you to copy an SSH key file to GitLab. If you have no such key, **and only if you do not already have one** (otherwise existing files could be replaced, which is not what you want), you will have to generate it.
 
 The command to generate a key looks like:
 ```