diff --git a/python-xmldiff.changes b/python-xmldiff.changes
index 0aa83d5..6a1a3f7 100644
--- a/python-xmldiff.changes
+++ b/python-xmldiff.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Apr 12 08:11:46 UTC 2019 - Matej Cepl <mcepl@suse.com>
+
+- Conflict python-xmldiff (unversioned)
+
 -------------------------------------------------------------------
 Wed Apr 10 08:01:52 UTC 2019 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/python-xmldiff.spec b/python-xmldiff.spec
index 5a86c7e..4be84e7 100644
--- a/python-xmldiff.spec
+++ b/python-xmldiff.spec
@@ -16,6 +16,7 @@
 #
 
 
+%define oldpython python
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-xmldiff
 Version:        2.3
@@ -37,6 +38,7 @@ Requires:       python-lxml >= 3.1.0
 Requires:       python-setuptools
 Requires:       python-six
 BuildArch:      noarch
+Conflicts:      %{oldpython}-xmldiff < %{version}
 
 %python_subpackages