diff --git a/gnome-shell-extensions.changes b/gnome-shell-extensions.changes
index 36b4892..20215cb 100644
--- a/gnome-shell-extensions.changes
+++ b/gnome-shell-extensions.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Sep 10 21:26:22 UTC 2017 - jengelh@inai.de
+
+- Update package summaries. Replace historic tar option specs.
+
 -------------------------------------------------------------------
 Wed Aug 23 07:59:02 UTC 2017 - xwang@suse.com
 
diff --git a/gnome-shell-extensions.spec b/gnome-shell-extensions.spec
index f7e6b59..517537c 100644
--- a/gnome-shell-extensions.spec
+++ b/gnome-shell-extensions.spec
@@ -57,7 +57,7 @@ GNOME Shell Extensions is a collection of extensions providing
 additional and optional functionality to GNOME Shell.
 
 %package common
-Summary:        GNOME Shell Extension -- Common Files
+Summary:        Common files for GNOME Shell extensions
 Group:          System/GUI/GNOME
 Requires:       gnome-shell
 Recommends:     %{name}-common-lang
@@ -81,7 +81,7 @@ Obsoletes:      gnome-shell-extensions < %{version}
 This package provides files common to several GNOME Shell Extensions
 
 %package -n gnome-shell-classic
-Summary:        Gnome-shell classic -- collection of extensions
+Summary:        A collection of extensions for Gnome-shell classic
 Group:          System/GUI/GNOME
 Recommends:     %{name}-common-lang
 
@@ -128,7 +128,7 @@ make %{?_smp_mflags}
 %if !0%{?is_opensuse}
 install -m0644 %{S:2} %{buildroot}/%{_datadir}/xsessions/sle-classic.desktop
 # Install SLE theme
-tar xzvf %{SOURCE3}
+tar -xzvf %{SOURCE3}
 install -d %{buildroot}%{_datadir}/gnome-shell/theme
 cp SLE-theme/theme/*  %{buildroot}%{_datadir}/gnome-shell/theme
 %endif