diff --git a/libtwolame.spec b/libtwolame.spec
index 8b62575..7d389b4 100644
--- a/libtwolame.spec
+++ b/libtwolame.spec
@@ -1,17 +1,20 @@
 Name:          libtwolame
 Version:       0.3.13
-Release:       1mamba
-Summary:       is an optimised MPEG Audio Layer 2 encoding library based on tooLAME
+Release:       2mamba
+Summary:       An optimised MPEG Audio Layer 2 encoding library based on tooLAME
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      gil <puntogil@libero.it>
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.twolame.org/
 Source:        http://downloads.sourceforge.net/sourceforge/twolame/twolame-%{version}.tar.gz
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libflac-devel
+BuildRequires: libogg-devel
 BuildRequires: libsndfile-devel
+BuildRequires: libvorbis-devel
 ## AUTOBUILDREQ-END
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
@@ -69,17 +72,16 @@ sed -i.rpath 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
 %files
 %defattr(-,root,root)
 %{_bindir}/twolame
-%{_libdir}/*.so.*
-%{_mandir}/man1/twolame.1.gz
+%{_libdir}/libtwolame.so.*
+%{_mandir}/man1/twolame.1*
 %doc AUTHORS COPYING
 
 %files devel
 %defattr(-,root,root)
-%dir %{_includedir}
 %{_includedir}/*.h
-%{_libdir}/*.a
-%{_libdir}/*.la
-%{_libdir}/*.so
+%{_libdir}/libtwolame.a
+%{_libdir}/libtwolame.la
+%{_libdir}/libtwolame.so
 %{_libdir}/pkgconfig/*.pc
 %doc ChangeLog README TODO
 
@@ -93,6 +95,9 @@ sed -i.rpath 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
 %{_docdir}/twolame/html/*.png
 
 %changelog
+* Sun Aug 18 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.13-2mamba
+- don't provide %dir %_includedir
+
 * Wed Jan 26 2011 Automatic Build System <autodist@mambasoft.it> 0.3.13-1mamba
 - automatic update by autodist