diff --git a/pkgs/development/python-modules/irc/default.nix b/pkgs/development/python-modules/irc/default.nix
index 672704249dc..b422b368ffb 100644
--- a/pkgs/development/python-modules/irc/default.nix
+++ b/pkgs/development/python-modules/irc/default.nix
@@ -1,6 +1,7 @@
 { buildPythonPackage, fetchPypi, isPy3k
 , six, jaraco_logging, jaraco_text, jaraco_stream, pytz, jaraco_itertools
-, setuptools_scm }:
+, setuptools_scm, jaraco_collections
+}:
 
 buildPythonPackage rec {
   pname = "irc";
@@ -23,5 +24,6 @@ buildPythonPackage rec {
     jaraco_stream
     pytz
     jaraco_itertools
+    jaraco_collections
   ];
 }