diff --git a/flake.nix b/flake.nix
index 00dc62f..5fe7a59 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,7 +22,7 @@
          rev = "9957cd48326fe8dbd52fdc50dd2502307f188b0d";
      }) {};
 
-     gnucash-old = pkgs.gnucash;
+     gnucash-old = gnucash;
   };
 
  outputs = inputs@{