diff --git a/lib/types.nix b/lib/types.nix
index 270ac1748c79..e7e8a99e5743 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -558,15 +558,6 @@ rec {
       nestedTypes.elemType = elemType;
     };
 
-    # TODO: drop this in the future:
-    loaOf = elemType: types.attrsOf elemType // {
-      name = "loaOf";
-      deprecationMessage = "Mixing lists with attribute values is no longer"
-        + " possible; please use `types.attrsOf` instead. See"
-        + " https://github.com/NixOS/nixpkgs/issues/1800 for the motivation.";
-      nestedTypes.elemType = elemType;
-    };
-
     # Value of given type but with no merging (i.e. `uniq list`s are not concatenated).
     uniq = elemType: mkOptionType rec {
       name = "uniq";