diff --git a/python-autobahn.changes b/python-autobahn.changes
index 2cdb2a2..236e2c8 100644
--- a/python-autobahn.changes
+++ b/python-autobahn.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed May 27 09:36:10 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
+
+- %python3_only -> %python_alternative
+
 -------------------------------------------------------------------
 Mon Apr 20 05:41:32 UTC 2020 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python-autobahn.spec b/python-autobahn.spec
index c839dbe..deba039 100644
--- a/python-autobahn.spec
+++ b/python-autobahn.spec
@@ -72,6 +72,8 @@ Requires:       python3-txaio >= 18.8.1
 Requires:       python3-ujson >= 1.35
 Requires:       python3-wsaccel >= 0.6.2
 Requires:       python3-zope.interface >= 3.6.0
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
 %python_subpackages
 
 %description
@@ -93,6 +95,7 @@ export CFLAGS="%{optflags}"
 %install
 export AUTOBAHN_USE_NVX=true
 %python_install
+%python_clone -a %{buildroot}%{_bindir}/wamp
 %python_expand %fdupes %{buildroot}%{$python_sitearch}
 
 %check
@@ -102,10 +105,16 @@ export PYTHONDONTWRITEBYTECODE=1
 export PY_IGNORE_IMPORTMISMATCH=1
 %pytest_arch
 
+%post
+%python_install_alternative wamp
+
+%postun
+%python_uninstall_alternative wamp
+
 %files %{python_files}
 %license LICENSE
 %doc README.rst
 %{python_sitearch}/*
-%python3_only %{_bindir}/wamp
+%python_alternative %{_bindir}/wamp
 
 %changelog