diff --git a/python-lexicon.changes b/python-lexicon.changes
index a43d6b4..e3d3ac1 100644
--- a/python-lexicon.changes
+++ b/python-lexicon.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Apr 23 13:16:19 UTC 2018 - tchvatal@suse.com
+
+- Conflict with python-dns-lexicon that provides same namespace
+
 -------------------------------------------------------------------
 Sun Mar  4 09:23:34 UTC 2018 - jengelh@inai.de
 
diff --git a/python-lexicon.spec b/python-lexicon.spec
index 22ad0a6..c276dd1 100644
--- a/python-lexicon.spec
+++ b/python-lexicon.spec
@@ -23,21 +23,22 @@ Release:        0
 Summary:        Python dict subclass(es) with aliasing and attribute access
 License:        BSD-2-Clause
 Group:          Development/Languages/Python
-Url:            https://github.com/bitprophet/lexicon
+URL:            https://github.com/bitprophet/lexicon
 Source:         https://files.pythonhosted.org/packages/source/l/lexicon/lexicon-%{version}.tar.gz
 # PATCH-FIX-UPSTREAM: add_test_init.patch # fix execution of tests
 Patch0:         https://github.com/bitprophet/lexicon/pull/10.patch#/add_test_init.patch
 BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module setuptools}
+BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+Requires:       python-six
+# Completely different pkg but same namespece in sitelib folder
+Conflicts:      python-dns-lexicon
+BuildArch:      noarch
 # SECTION tests
 BuildRequires:  %{python_module six}
 BuildRequires:  %{python_module spec}
 # /SECTION tests
-BuildRequires:  fdupes
-Requires:       python-six
-BuildArch:      noarch
-
 %python_subpackages
 
 %description