diff --git a/mutter.changes b/mutter.changes
index ed786d9..ef6cf06 100644
--- a/mutter.changes
+++ b/mutter.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Nov  4 21:38:00 UTC 2016 - jengelh@inai.de
+
+- Update descriptions
+
 -------------------------------------------------------------------
 Tue Nov  1 10:09:57 UTC 2016 - zaitor@opensuse.org
 
diff --git a/mutter.spec b/mutter.spec
index aeeec27..66e083e 100644
--- a/mutter.spec
+++ b/mutter.spec
@@ -99,10 +99,10 @@ Mutter is a window and compositing manager based on Clutter, forked
 from Metacity.
 
 %package -n libmutter0
-Summary:        Window and compositing manager based on Clutter -- Library
+Summary:        Window and compositing manager based on Clutter
+Group:          System/Libraries
 # we need the gsettings schema; hopefully, they'll stay backwards compatible
 # (since we can't require = version, to not break SLPP)
-Group:          System/Libraries
 Requires:       %{name}-data >= %{version}
 
 %description -n libmutter0
@@ -112,7 +112,7 @@ from Metacity.
 This package contains a library for shared features.
 
 %package data
-Summary:        Window and compositing manager based on Clutter -- Data Files
+Summary:        Data files for mutter, a window and compositing manager based on Clutter
 Group:          System/GUI/GNOME
 Requires:       %{name} = %{version}
 %glib2_gsettings_schema_requires
@@ -124,15 +124,14 @@ from Metacity.
 This package contains data files needed by mutter and its library.
 
 %package devel
-Summary:        Include Files and Libraries mandatory for Development
+Summary:        Development files for mutter, a window and compositing manager
 Group:          Development/Libraries/GNOME
 Requires:       %{name} = %{version}
 Requires:       libmutter0 = %{version}
 
 %description devel
-This package contains all necessary include files and libraries needed
-to develop applications that require these.
-
+This subpackage contains libraries and header files for developing
+applications that want to make use of the mutter library.
 
 %lang_package
 %prep