diff --git a/git/.gitconfig b/git/.gitconfig
index 2e355a9..c3f1ed8 100644
--- a/git/.gitconfig
+++ b/git/.gitconfig
@@ -5,6 +5,8 @@
   hist-tags = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr)%Creset' --abbrev-commit --date=relative
   most-recent-by-branch = for-each-ref --sort=committerdate refs/heads/ --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(color:red)%(objectname:short)%(color:reset) - %(contents:subject) - %(authorname) (%(color:green)%(committerdate:relative)%(color:reset))'
   root = rev-parse --show-toplevel
+  add-trailer = commit --no-edit --amend --trailer
+
 
 [commit]
   gpgsign = true
diff --git a/zsh/.config/zsh/aliases b/zsh/.config/zsh/aliases
index be95cd5..3ac045c 100644
--- a/zsh/.config/zsh/aliases
+++ b/zsh/.config/zsh/aliases
@@ -54,6 +54,7 @@ alias grc="git rm --cached"
 alias grh="git reset --hard"
 alias grm="git rm"
 alias gst="git log $(git describe --tags --abbrev=0)..HEAD --no-merges --oneline"
+alias gsw='git log --pretty="%an <%ae>" | sort -u | fzf | xargs -I "{}" git add-trailer "Co-authored-by: {}"'
 alias gup="git-branch-delete-merged"
 alias Grep='grep'
 alias l="ls"