diff --git a/lib/fixed-points.nix b/lib/fixed-points.nix
index c80a7f72eba8..8fd3acb59813 100644
--- a/lib/fixed-points.nix
+++ b/lib/fixed-points.nix
@@ -409,7 +409,7 @@ rec {
     ```
     :::
   */
-  composeManyExtensions = lib.foldr (x: y: composeExtensions x y) (final: prev: { });
+  composeManyExtensions = lib.foldr composeExtensions (final: prev: { });
 
   /**
     Create an overridable, recursive attribute set. For example: