diff --git a/.gitignore b/.gitignore
index 69681f2..56b25ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ nokogiri-1.4.3.1.gem
 /nokogiri-1.6.5.gem
 /nokogiri-1.6.6.1.gem
 /nokogiri-1.6.6.2.gem
+/nokogiri-1.6.6.4.gem
diff --git a/rubygem-nokogiri-1.6.6.4-shutdown-libxml2-warning.patch b/rubygem-nokogiri-1.6.6.4-shutdown-libxml2-warning.patch
new file mode 100644
index 0000000..add8fe8
--- /dev/null
+++ b/rubygem-nokogiri-1.6.6.4-shutdown-libxml2-warning.patch
@@ -0,0 +1,10 @@
+--- nokogiri-1.6.6.4/./lib/nokogiri/version.rb.nowarn	2015-11-20 05:50:37.000000000 +0900
++++ nokogiri-1.6.6.4/./lib/nokogiri/version.rb	2015-12-11 14:32:04.151973080 +0900
+@@ -34,6 +34,7 @@
+     end
+ 
+     def warnings
++      return []
+       return [] unless libxml2?
+ 
+       if compiled_parser_version != loaded_parser_version
diff --git a/rubygem-nokogiri.spec b/rubygem-nokogiri.spec
index 9691c5b..f02965f 100644
--- a/rubygem-nokogiri.spec
+++ b/rubygem-nokogiri.spec
@@ -3,7 +3,7 @@
 %global        ruby_sitearch           %(ruby -rrbconfig -e "puts Config::CONFIG['sitearchdir']")
 %endif
 
-%global	mainver		1.6.6.2
+%global	mainver		1.6.6.4
 #%%global	prever			.beta.4
 
 %global	mainrel		1
@@ -43,6 +43,8 @@ Source0:	https://rubygems.org/gems/%{gemname}-%{mainver}%{?prever}.gem
 # ./test/html/test_element_description.rb:62 fails, as usual......
 # Patch0:		rubygem-nokogiri-1.5.0.beta3-test-failure.patch
 #Patch0:		rubygem-nokogiri-1.5.0-allow-non-crosscompile.patch
+# Shut down libxml2 version unmatching warning
+Patch0:	%{name}-1.6.6.4-shutdown-libxml2-warning.patch
 %if 0%{?fedora} >= 19
 Requires:	ruby(release)
 BuildRequires:	ruby(release)
@@ -115,7 +117,7 @@ gem unpack %{SOURCE0}
 cd %{gem_name}-%{version}
 
 # patches
-#%%patch0 -p1
+%patch0 -p1
 
 gem specification -l --ruby %{SOURCE0} > %{gem_name}.gemspec
 
@@ -257,6 +259,10 @@ popd
 %{gemdir}/doc/%{gemname}-%{mainver}%{?prever}/
 
 %changelog
+* Fri Dec 11 2015 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.6.6.4-1
+- Shutdown libxml2 version mismatch warning
+- 1.6.6.4
+
 * Sun Jan 25 2015 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.6.6.2-1
 - 1.6.6.2
 
diff --git a/sources b/sources
index 0fa17eb..82c91bd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-fc9f91534bf93d57b84f625b55732a7c  nokogiri-1.6.6.2.gem
+4741c48f07ee6bba99e6d10046ad99c6  nokogiri-1.6.6.4.gem