diff --git a/gnuradio.changes b/gnuradio.changes
index 3d35bfa..86f9977 100644
--- a/gnuradio.changes
+++ b/gnuradio.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Dec  4 12:31:11 UTC 2014 - dmitry_r@opensuse.org
+
+- Set libgnuradio0 as obsolete
+
 -------------------------------------------------------------------
 Fri Nov 28 13:00:16 UTC 2014 - stefan.bruens@rwth-aachen.de
 
diff --git a/gnuradio.spec b/gnuradio.spec
index 2105b48..f03995d 100644
--- a/gnuradio.spec
+++ b/gnuradio.spec
@@ -91,6 +91,7 @@ This package contains the wxgui blocks
 %package     -n libgnuradio-%{soname}
 Summary:        Libraries for GNU Radio
 Group:          System/Libraries
+Obsoletes:      libgnuradio0
 
 %description -n libgnuradio-%{soname}
 GNU Radio is a collection of software that when combined with minimal
@@ -104,6 +105,7 @@ This package contains the libraries for GNU Radio.
 %package     -n libvolk%{soname_volk}
 Summary:        Libraries for GNU Radio
 Group:          System/Libraries
+Conflicts:      libgnuradio0
 
 %description -n libvolk%{soname_volk}
 GNU Radio is a collection of software that when combined with minimal