diff --git a/users/simon/modules/youtube-dl.nix b/users/simon/modules/youtube-dl.nix
index a24ecbe..4b90e03 100644
--- a/users/simon/modules/youtube-dl.nix
+++ b/users/simon/modules/youtube-dl.nix
@@ -5,10 +5,10 @@
 { lib, pkgs, ... }:
 let
   # zAudioFormat because a better video format is preferred and
-  # cartesianProductOfSets cycles through the attributes in lexicographic order
+  # cartesianProduct cycles through the attributes in lexicographic order
   formats = (map
     ({ videoFormat, zAudioFormat }: "${videoFormat}+${zAudioFormat}")
-    (lib.cartesianProductOfSets {
+    (lib.cartesianProduct {
       videoFormat = [ "bestvideo[vcodec^=av01]" "bestvideo[vcodec^=vp09]" "bestvideo[vcodec^=avc1]" "bestvideo" ];
       zAudioFormat = [ "bestaudio[acodec^=opus]" "bestaudio[acodec^=mp4a]" "bestaudio" ];
     })) ++ [ "best" ];