diff --git a/dotfiles/zshrc.d/cnf.zsh b/dotfiles/zshrc.d/cnf.zsh
new file mode 100644
index 0000000..155ce94
--- /dev/null
+++ b/dotfiles/zshrc.d/cnf.zsh
@@ -0,0 +1,4 @@
+# TODO: this is horribly unportable.  Fix it.
+if test -r /etc/zsh_command_not_found && test -r /var/lib/command-not-found/commands.db ; then
+  source /etc/zsh_command_not_found
+fi