diff --git a/flake.nix b/flake.nix
index b5d791c..805ee2a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,7 +31,7 @@
 
       dlibrary = buildPythonApplication {
         pname = "dlibrary";
-        inherit (project) version;
+        inherit (project.project) version;
         pyproject = true;
         propagatedBuildInputs = [
           pymupdf