diff --git a/pkgs/development/python-modules/sopel/default.nix b/pkgs/development/python-modules/sopel/default.nix
index 93b942811c389..2c679d921caef 100644
--- a/pkgs/development/python-modules/sopel/default.nix
+++ b/pkgs/development/python-modules/sopel/default.nix
@@ -12,6 +12,7 @@
 , pythonOlder
 , pytz
 , sqlalchemy
+, setuptools
 , xmltodict
 }:
 
@@ -43,6 +44,7 @@ buildPythonPackage rec {
     pygeoip
     pytz
     sqlalchemy
+    setuptools # Needed for pkg_resources.
     xmltodict
   ];