diff --git a/pkgs/by-name/pa/pattypan/package.nix b/pkgs/by-name/pa/pattypan/package.nix
index 7145f56a9289a..bc2e164a8ea91 100644
--- a/pkgs/by-name/pa/pattypan/package.nix
+++ b/pkgs/by-name/pa/pattypan/package.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   nativeBuildInputs = [
     ant
-    jdk
+    jdk'
     makeWrapper
     wrapGAppsHook3
     copyDesktopItems