diff --git a/libxfce4ui.spec b/libxfce4ui.spec
index f4d5662..845301f 100644
--- a/libxfce4ui.spec
+++ b/libxfce4ui.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          libxfce4ui
 Version:       4.12.1
-Release:       1mamba
+Release:       2mamba
 Summary:       Xfce's unified widgets library
 Group:         System/Libraries
 Vendor:        openmamba
@@ -48,6 +48,8 @@ BuildRequires: xfconf-devel
 ## AUTOBUILDREQ-END
 Provides:      libxfce4mcs
 Obsoletes:     libxfce4mcs
+Provides:      libxfcegui4
+Obsoletes:     libxfcequi4
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -59,6 +61,8 @@ Summary:       Static libraries and headers for %{name}
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 Provides:      libxfce4mcs-devel
 Obsoletes:     libxfce4mcs-devel
+Provides:      libxfcegui4-devel
+Obsoletes:     libxfcequi4-devel
 
 %description devel
 Xfce's unified widgets library.
@@ -133,6 +137,9 @@ This package includes the %{name} API documentation.
 %{_datadir}/gtk-doc/html/%{name}
 
 %changelog
+* Sun Mar 29 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 4.12.1-2mamba
+- provide/obsolete libxfcegui4
+
 * Fri Mar 27 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 4.12.1-1mamba
 - update to 4.12.1