diff --git a/home/.config/zsh/06-pacman.zsh b/home/.config/zsh/06-pacman.zsh
new file mode 100644
index 0000000..56ebbce
--- /dev/null
+++ b/home/.config/zsh/06-pacman.zsh
@@ -0,0 +1,6 @@
+# from https://wiki.archlinux.org/index.php/Zsh#On-demand_rehash
+catch_signal_usr1() {
+  trap catch_signal_usr1 USR1
+  rehash
+}
+trap catch_signal_usr1 USR1