diff --git a/ibus.changes b/ibus.changes
index 862c190..1e31a78 100644
--- a/ibus.changes
+++ b/ibus.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Wed Oct 17 04:20:14 UTC 2012 - douglarek@outlook.com
+
+-  .spec file optimization
+
+   * remove commented patch lines
+   * use `make %{?_smp_mflags}` instead of `make %{?jobs:-j%jobs}`
+     see: http://en.opensuse.org/openSUSE:Specfile_guidelines#Parallel_make
+
 -------------------------------------------------------------------
 Sat Aug 25 20:25:17 CST 2012 - hillwood@linuxfans.org
 
diff --git a/ibus.spec b/ibus.spec
index fe5255d..cb69ec0 100644
--- a/ibus.spec
+++ b/ibus.spec
@@ -31,8 +31,6 @@ Source3:        xim.ibus.suse.template
 Source4:        xim.d-ibus-121
 Patch0:         ibus-python-install-dir.patch
 Patch1:         ibus-fix-default-preload-engines.patch
-#Patch2:         ibus-src-Makefile.am.diff
-#Patch3:         ibus-fsf-address.patch
 Summary:        Intelligent Input Bus for Linux OS
 License:        LGPL-2.1+
 Group:          System/I18n/Chinese
@@ -142,7 +140,7 @@ intltoolize -f
                    --disable-gobject-introspection \
 		   --enable-gtk-doc \
 	           --libexecdir=%{_prefix}/%{_lib}/ibus
-make %{?jobs:-j %jobs}
+make %{?_smp_mflags}
 
 %install
 %makeinstall