diff --git a/src/modules/top-level.nix b/src/modules/top-level.nix
index 3df08aab9..9df3fdca3 100644
--- a/src/modules/top-level.nix
+++ b/src/modules/top-level.nix
@@ -74,7 +74,7 @@ in
 
     unsetEnvVars = lib.mkOption {
       type = types.listOf types.str;
-      description = "Remove these list of env vars from being exported to keep the shell/direnv more lean.";
+      description = "A list of removed environment variables to make the shell/direnv more lean.";
       # manually determined with knowledge from https://nixos.wiki/wiki/C
       default = [
         "HOST_PATH"
@@ -91,6 +91,7 @@ in
         "depsHostHostPropagated"
         "depsTargetTarget"
         "depsTargetTargetPropagated"
+        "dontAddDisableDepTrack"
         "doCheck"
         "doInstallCheck"
         "nativeBuildInputs"