diff --git a/pkgs/development/python-modules/iniparse/default.nix b/pkgs/development/python-modules/iniparse/default.nix
index d292196ff53..e240b0863c2 100644
--- a/pkgs/development/python-modules/iniparse/default.nix
+++ b/pkgs/development/python-modules/iniparse/default.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , python
+, six
 }:
 
 buildPythonPackage rec {
@@ -17,6 +18,8 @@ buildPythonPackage rec {
     ${python.interpreter} runtests.py
   '';
 
+  propagatedBuildInputs = [ six ];
+
   # Does not install tests
   doCheck = false;