diff --git a/pkgs/by-name/ho/hooky/package.nix b/pkgs/by-name/ho/hooky/package.nix
index 04ba4fb69eb5..9a087b351419 100644
--- a/pkgs/by-name/ho/hooky/package.nix
+++ b/pkgs/by-name/ho/hooky/package.nix
@@ -20,6 +20,11 @@ haskellPackages.mkDerivation {
     hash = "sha256-w4sWD5dZTNKwrYhrJw9RcwGoeNxpJnm/6RRqYjiIiBg=";
   };
 
+  postPatch = ''
+    substituteInPlace src/Hooky/Config.hs \
+      --replace-fail 'KDL.text' 'KDL.string'
+  '';
+
   isLibrary = true;
   isExecutable = true;
   libraryHaskellDepends = with haskellPackages; [