diff --git a/pkgs/by-name/pa/paperless-ngx/package.nix b/pkgs/by-name/pa/paperless-ngx/package.nix
index c926b86282bf..e75259f543e6 100644
--- a/pkgs/by-name/pa/paperless-ngx/package.nix
+++ b/pkgs/by-name/pa/paperless-ngx/package.nix
@@ -117,6 +117,7 @@ pythonPackages.buildPythonApplication (finalAttrs: {
     "drf-spectacular-sidecar"
     "python-dotenv"
     "gotenberg-client"
+    "nltk"
     "redis"
     "scikit-learn"
     "tika-client"