diff --git a/modules/home/emacs.nix b/modules/home/emacs.nix
index 5b54cf6..3836680 100644
--- a/modules/home/emacs.nix
+++ b/modules/home/emacs.nix
@@ -56,7 +56,12 @@ in {
         Extra arguments to pass to the final wrapProgram call.
       '';
       default = [];
-      type = lib.types.listOf lib.types.str;
+      type = with lib.types;
+        listOf
+          (coercedTo
+            (oneOf [str package])
+            builtins.toString
+            str);
       apply = lib.escapeShellArgs;
     };
   };