diff --git a/python-pbr.spec b/python-pbr.spec
index cbb834f..faf986a 100644
--- a/python-pbr.spec
+++ b/python-pbr.spec
@@ -1,6 +1,6 @@
 Name:          python-pbr
 Version:       5.11.1
-Release:       1mamba
+Release:       2mamba
 Summary:       A library that injects some useful and sensible default behaviors into your setuptools run
 Group:         System/Libraries
 Vendor:        openmamba
@@ -18,6 +18,8 @@ BuildRequires: python3.7dist(setuptools)
 %{summary}.
 
 %if 0%{?with_pyver}
+%define py_requires_append \
+Obsoletes: python-pbr < 5.11.1-2mamba
 %pyver_package
 %endif
 
@@ -38,13 +40,16 @@ CFLAGS="%{optflags}" %{__python} setup.py build
 
 sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 
-%files -f %{name}.filelist
+%files %{?pyappend} -f %{name}.filelist
 %defattr(-,root,root)
 %dir %{python_sitearch}/pbr-%{version}-py*.egg-info
 %{python_sitearch}/pbr-%{version}-py*.egg-info/*
 %doc AUTHORS LICENSE
 
 %changelog
+* Sun Sep 10 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 5.11.1-2mamba
+- fix missing -pyX suffix to built packages
+
 * Wed Jan 11 2023 Automatic Build System <autodist@mambasoft.it> 5.11.1-1mamba
 - automatic version update by autodist