diff --git a/hargyllcms.spec b/hargyllcms.spec
index 99d2d0d..a199924 100644
--- a/hargyllcms.spec
+++ b/hargyllcms.spec
@@ -1,6 +1,6 @@
 Name:          hargyllcms
 Version:       1.9.2
-Release:       1mamba
+Release:       2mamba
 Summary:       An ICC compatible color management system with support for different colorimeter hardware
 Group:         Applications/Graphics
 Vendor:        openmamba
@@ -48,6 +48,8 @@ Documentation for %{name} tools.
 %package -n lib%{name}
 Group:         System/Libraries
 Summary:       Shared libraries for %{name}
+Provides:      libargyllcms
+Obsoletes:     libargyllcms
 
 %description -n lib%{name}
 This package contains shared libraries for %{name}.
@@ -56,6 +58,8 @@ This package contains shared libraries for %{name}.
 Group:         Development/Libraries
 Summary:       Development files for %{name}
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      libargyllcms-devel
+Obsoletes:     libargyllcms-devel
 
 %description -n lib%{name}-devel
 This package contains libraries and header files for developing applications that use %{name}.
@@ -121,5 +125,8 @@ rm -f %{buildroot}/lib/udev/rules.d/55-Argyll.rules
 %doc ChangeLog README
 
 %changelog
+* Tue Dec 01 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.9.2-2mamba
+- libhargillcms[-devel]: obsolete libargyllcms[-devel]
+
 * Tue Dec 01 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.9.2-1mamba
 - package created using the webbuild interface