diff --git a/aliases.zsh b/aliases.zsh
index 9442e82..1420563 100644
--- a/aliases.zsh
+++ b/aliases.zsh
@@ -2,6 +2,8 @@
 
 alias cdiff="colordiff"
 
+alias mktemp='mktemp --suffix=.delme --tmpdir=$XDG_RUNTIME_DIR'
+
 function clean-gpg () {
     [ -z "$(command -v gpg2)" ] && exit 1;
     for key in $(gpg2 -k | sed -rn 's/pub +[a-z0-9]+\/(0x[0-9A-Fa-f]+).*/\1/p');