diff --git a/fotoxx.spec b/fotoxx.spec
index e8ab12f..a8b44c2 100644
--- a/fotoxx.spec
+++ b/fotoxx.spec
@@ -1,5 +1,5 @@
 Name:          fotoxx
-Version:       22.41
+Version:       22.50
 Release:       1mamba
 Summary:       A free open source Linux program for editing image files from a digital camera
 Group:         Graphical Desktop/Applications/Graphics
@@ -38,7 +38,7 @@ Navigate images with a pageable thumbnail window, edit an entire image or select
 %setup -q -n %{name}
 
 %build
-export PREFIX=/usr 
+export PREFIX=%{_prefix}
 %make 
 
 %install
@@ -62,11 +62,16 @@ export DESTDIR=%{buildroot}/usr
 %{_datadir}/fotoxx/images/*.jpg
 %{_datadir}/fotoxx/images/*.png
 %{_datadir}/applications/fotoxx.desktop
+%{_datadir}/metainfo/kornelix.fotoxx.metainfo.xml
 %dir %{_datadir}/doc/fotoxx
 %{_datadir}/doc/fotoxx/*
 %{_mandir}/man1/fotoxx.1*
+%doc doc/copyright
 
 %changelog
+* Sat Dec 03 2022 Automatic Build System <autodist@mambasoft.it> 22.50-1mamba
+- automatic version update by autodist
+
 * Fri Nov 04 2022 Automatic Build System <autodist@mambasoft.it> 22.41-1mamba
 - automatic version update by autodist