diff --git a/pkgs/applications/editors/vim/plugins/utils/updater.nix b/pkgs/applications/editors/vim/plugins/utils/updater.nix
index 2ed61a25c83a..0c77e7ce745c 100644
--- a/pkgs/applications/editors/vim/plugins/utils/updater.nix
+++ b/pkgs/applications/editors/vim/plugins/utils/updater.nix
@@ -43,7 +43,7 @@ buildPythonApplication {
         neovim-unwrapped
         nurl
       ]
-    }" --prefix PYTHONPATH : "${./.}" )
+    }" --prefix PYTHONPATH : "${lib.sources.sourceByGlobs ./. [ "**/*.py" ]}" )
     wrapPythonPrograms
   '';