diff --git a/home/packages/custom/update-system/default.nix b/home/packages/custom/update-system/default.nix
index 65e6b7c..a726135 100644
--- a/home/packages/custom/update-system/default.nix
+++ b/home/packages/custom/update-system/default.nix
@@ -3,14 +3,16 @@
 writeShellApplication {
   name = "custom-update-system";
 
+  # Including this doesn't work
+  # oldVersion=$(home-manager generations | head -n 2 | tail -n 1 | cut -d' ' -f 7)
+  # newVersion=$(home-manager generations | head -n 1 | cut -d' ' -f 7)
+  # nvd diff "$oldVersion" "$newVersion"
+
   text = ''
     nix-channel --update
     home-manager switch
     home-manager expire-generations '-30 days'
     nix-env --delete-generations +5
-    oldVersion=$(home-manager generations | head -n 2 | tail -n 1 | cut -d' ' -f 7)
-    newVersion=$(home-manager generations | head -n 1 | cut -d' ' -f 7)
-    nvd diff "$oldVersion" "$newVersion"
     nix store gc
     nix store optimise
   '';