diff --git a/system/.gitconfig b/system/.gitconfig
index 1fe26dc..4fdd915 100644
--- a/system/.gitconfig
+++ b/system/.gitconfig
@@ -13,6 +13,7 @@
 [user]
 	email = severin.kaderli@gmail.com
 	name = Severin Kaderli
+	signingkey = F419F8835B72F0C4
 
 [alias]
 	# Display the history of the latest 20 commits
@@ -28,7 +29,7 @@
 	a = add --all
 
 	# Create a commit and sign it off
-	c = commit -s
+	c = commit -s -S
 
 	# Push to the master branch of the origin remote
 	p = push --follow-tags