diff --git a/files/git/.gitconfig b/files/git/.gitconfig
index b757c5d..987e861 100644
--- a/files/git/.gitconfig
+++ b/files/git/.gitconfig
@@ -1,6 +1,6 @@
 [user]
 	name = Marco Thomas
-	email = github@marcothms.de
+	email = git@marcothms.de
 [includeIf "gitdir:~/dev/lrz-gitlab/**"]
 	path = "~/dev/lrz-gitlab/.gitconfig"
 [alias]
diff --git a/files/shell/.shellrc.alias b/files/shell/.shellrc.alias
index 23e8b4a..f010d6c 100644
--- a/files/shell/.shellrc.alias
+++ b/files/shell/.shellrc.alias
@@ -19,6 +19,7 @@ alias blame='git show $(git ls-files | fzf -e --reverse --bind "enter:become(git
 # nix
 alias nd="nix develop ."
 alias ns="nix-shell"
+alias nupdate="nix-channel --update"
 
 # https://github.com/loqusion/typix
 alias typix="nix flake init --refresh -t github:loqusion/typix"