diff --git a/pkgs/by-name/pr/pretix/package.nix b/pkgs/by-name/pr/pretix/package.nix
index db4805612854..c5baa51d8dbe 100644
--- a/pkgs/by-name/pr/pretix/package.nix
+++ b/pkgs/by-name/pr/pretix/package.nix
@@ -103,6 +103,7 @@ python.pkgs.buildPythonApplication rec {
     "protobuf"
     "pycryptodome"
     "pyjwt"
+    "pypdf"
     "python-bidi"
     "qrcode"
     "redis"