diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5e67aac3960..231d496f9d4 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -23922,7 +23922,7 @@ in {
       sha256 = "0kqvjb89b02wp41p650ydfspi1s8d7akx1igcrw62diidqbxp04n";
     };
 
-    propagatedBuildInputs = with self; [ pydns lockfile ];
+    propagatedBuildInputs = with self; [ bsddb3 pydns lockfile ];
 
     meta = {
       description = "Statistical anti-spam filter, initially based on the work of Paul Graham";