diff --git a/powertop.spec b/powertop.spec
index 80d34a6..e9c9d6f 100644
--- a/powertop.spec
+++ b/powertop.spec
@@ -1,13 +1,13 @@
 Name:          powertop
-Version:       2.8
-Release:       2mamba
+Version:       2.9
+Release:       1mamba
 Summary:       A Linux tool to diagnose issues with power consumption and power management
 Group:         System/Benchmarks
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Ercole 'ercolinux' Carpanetto <ercole69@gmail.com>
 URL:           https://01.org/powertop/
-Source:        https://01.org/sites/default/files/downloads/powertop/powertop-%{version}.tar.gz
+Source:        https://01.org/sites/default/files/downloads/powertop/powertop-v%{version}.tar.gz
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -25,7 +25,7 @@ PowerTOP is a Linux tool to diagnose issues with power consumption and power man
 %debug_package
 
 %prep
-%setup -q
+%setup -q -n %{name}-v%{version}
 
 %build
 %configure
@@ -43,10 +43,13 @@ PowerTOP is a Linux tool to diagnose issues with power consumption and power man
 %files -f %{name}.lang
 %defattr(-,root,root)
 %{_sbindir}/powertop
-%{_mandir}/man8/powertop.8.gz
+%{_mandir}/man8/powertop.8*
 %doc COPYING
 
 %changelog
+* Sun Jul 29 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 2.9-1mamba
+- update to 2.9
+
 * Wed Nov 11 2015 Automatic Build System <autodist@mambasoft.it> 2.8-2mamba
 - automatic version update by autodist