diff --git a/pkgs/by-name/co/cooper/package.nix b/pkgs/by-name/co/cooper/package.nix
index 612072f08f83..fefbb01d7155 100644
--- a/pkgs/by-name/co/cooper/package.nix
+++ b/pkgs/by-name/co/cooper/package.nix
@@ -8,6 +8,11 @@ stdenvNoCC.mkDerivation {
   pname = "cooper";
   version = "1.01-unstable-2025-05-25";
 
+  outputs = [
+    "out"
+    "webfont"
+  ];
+
   src = fetchFromGitHub {
     owner = "indestructible-type";
     repo = "Cooper";