diff --git a/pkgs/pkgs-lib/formats.nix b/pkgs/pkgs-lib/formats.nix
index 5ed60f3bd05c..5d9876e67ee6 100644
--- a/pkgs/pkgs-lib/formats.nix
+++ b/pkgs/pkgs-lib/formats.nix
@@ -358,7 +358,7 @@ optionalAttrs allowAliases aliases
           {
             listsAsDuplicateKeys ? false,
             ...
-          }@args:
+          }:
           let
             atom = iniAtom {
               inherit listsAsDuplicateKeys;