diff --git a/documentation/contributor-guide/submit-changes.rst b/documentation/contributor-guide/submit-changes.rst
index a4e1a5a4d9..31d7ffd865 100644
--- a/documentation/contributor-guide/submit-changes.rst
+++ b/documentation/contributor-guide/submit-changes.rst
@@ -65,6 +65,13 @@ use to identify your commits::
    git config --global user.name "Ada Lovelace"
    git config --global user.email "ada.lovelace@gmail.com"
 
+By default, Git adds a signature line at the end of patches containing the Git
+version. We suggest to remove it as it doesn't add useful information.
+
+Remove it with the following command::
+
+   git config --global format.signature ""
+
 Clone the Git repository for the component to modify
 ----------------------------------------------------