diff --git a/pkgs/development/python-modules/zope_copy/default.nix b/pkgs/development/python-modules/zope_copy/default.nix
index 4d6e740278e8..0d1ae412262d 100644
--- a/pkgs/development/python-modules/zope_copy/default.nix
+++ b/pkgs/development/python-modules/zope_copy/default.nix
@@ -1,6 +1,7 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, isPy27
 , zope_interface
 , zope_location
 , zope_schema
@@ -18,6 +19,7 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ zope_interface ];
 
+  doCheck = !isPy27; # namespace conflicts
   checkInputs = [ zope_location zope_schema ];
 
   checkPhase = ''