diff --git a/pkgs/by-name/li/libcosmicAppHook/package.nix b/pkgs/by-name/li/libcosmicAppHook/package.nix
index 549c628c870d..f4bc7bd4f34f 100644
--- a/pkgs/by-name/li/libcosmicAppHook/package.nix
+++ b/pkgs/by-name/li/libcosmicAppHook/package.nix
@@ -46,7 +46,7 @@ makeSetupHook {
   substitutions = {
     fallbackXdgDirs = "${lib.optionalString includeSettings "${targetPackages.cosmic-settings}/share:"}${targetPackages.cosmic-icons}/share";
 
-    cargoLinkerVar = stdenv.hostPlatform.rust.cargoEnvVarTarget;
+    cargoLinkerVar = targetPackages.stdenv.hostPlatform.rust.cargoEnvVarTarget;
     # force linking for all libraries that may be dlopen'd by libcosmic/iced apps
     cargoLinkLibs = lib.escapeShellArgs (
       [