diff --git a/smb4k.spec b/smb4k.spec
index d2415b5..c13fe63 100644
--- a/smb4k.spec
+++ b/smb4k.spec
@@ -4,7 +4,7 @@
 
 Name:          smb4k
 Version:       3.1.2
-Release:       1mamba
+Release:       2mamba
 Summary:       A SMB/CIFS share browser for KDE
 Group:         Graphical Desktop/Applications/Networking
 Vendor:        openmamba
@@ -53,6 +53,8 @@ BuildRequires: gettext-devel
 BuildRequires: libxml2-utils
 Provides:      smb4k4
 Obsoletes:     smb4k4 < 3.1.1
+Provides:      smb4k-devel
+Obsoletes:     smb4k-devel <= 3.1.2-1mamba
 Requires:      samba >= 3.0.3-2
 
 %description
@@ -60,19 +62,6 @@ Smb4K is a SMB/CIFS share browser for KDE.
 It uses the Samba software suite to access the SMB shares of the local network neighborhood.
 Its purpose is to provide a program that's easy to use and has as many features as possible.
 
-%package devel
-Group:         Development/Libraries
-Summary:       Static libraries and headers for %{name}
-Provides:      smb4k4-devel
-Obsoletes:     smb4k4-devel < 3.1.1
-Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
-
-%description devel
-Smb4K is a SMB/CIFS share browser for KDE.
-It uses the Samba software suite to access the SMB shares of the local network neighborhood.
-Its purpose is to provide a program that's easy to use and has as many features as possible.
-This package provides the static libraries and headers needed for development.
-
 %debug_package
 
 %prep
@@ -111,6 +100,7 @@ This package provides the static libraries and headers needed for development.
 %{_kde5_kcfgdir}/smb4k.kcfg
 %{_kde5_kconfupdatedir}/*
 #%{_kde5_libdir}/libsmb4kcore.so.*
+%{_kde5_libdir}/libsmb4kcore.so
 %{_libdir}/qt5/plugins/smb4k*.so
 %dir %{_libdir}/qt5/qml/org/kde/smb4k
 %dir %{_libdir}/qt5/qml/org/kde/smb4k/smb4kqmlplugin
@@ -133,11 +123,10 @@ This package provides the static libraries and headers needed for development.
 #%lang(sv) %{_kde5_htmldir}/sv/*
 #%lang(uk) %{_kde5_htmldir}/uk/*
 
-%files devel
-%defattr(-,root,root)
-%{_kde5_libdir}/libsmb4kcore.so
-
 %changelog
+* Sat Jul 09 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 3.1.2-2mamba
+- move libsmb4kcore.so to main package; remove/obsolete -devel subpackage
+
 * Mon Apr 11 2022 Automatic Build System <autodist@mambasoft.it> 3.1.2-1mamba
 - automatic version update by autodist