diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index ba3de9a63aac..1d6af843e2fd 100644
--- a/pkgs/applications/misc/calibre/default.nix
+++ b/pkgs/applications/misc/calibre/default.nix
@@ -111,6 +111,7 @@ mkDerivation rec {
       setuptools
       zeroconf
       jeepney
+      pycryptodome
       # the following are distributed with calibre, but we use upstream instead
       odfpy
     ] ++ lib.optional (unrarSupport) unrardll