diff --git a/nix/srcds/addons.nix b/nix/srcds/addons.nix
index 0d107bf..42b5e64 100644
--- a/nix/srcds/addons.nix
+++ b/nix/srcds/addons.nix
@@ -8,14 +8,15 @@
   sdk,
   extraPackages,
 }: let
-  inherit (lib) foldl unique;
+  inherit (lib) foldl unique sort elem;
   sdks = {
     ${sdk} = hl2sdk.${sdk};
   };
   metaModSdk = metamod-source-builder sdks;
   sourceModSdk = sourcemod-builder sdks;
   flattenRequires = foldl (acc: package: acc ++ [package] ++ (flattenRequires package.runtimeInputs or [])) [];
-  propagatedExtraPackages = unique (flattenRequires extraPackages);
+  dependsOn = a: b: elem b (a.runtimeInputs or []);
+  propagatedExtraPackages = sort dependsOn (unique (flattenRequires extraPackages));
   names = lib.map (p: p.name) propagatedExtraPackages;
 in
   symlinkJoin {