diff --git a/Formula/groonga-normalizer-mysql.rb b/Formula/groonga-normalizer-mysql.rb
deleted file mode 100644
index cba0e84469..0000000000
--- a/Formula/groonga-normalizer-mysql.rb
+++ /dev/null
@@ -1,41 +0,0 @@
-class GroongaNormalizerMysql < Formula
-  desc "MySQL compatible normalizer plugin for Groonga"
-  homepage "https://github.com/groonga/groonga-normalizer-mysql"
-  url "http://packages.groonga.org/source/groonga-normalizer-mysql/groonga-normalizer-mysql-1.1.0.tar.gz"
-  sha256 "525daffdb999b647ce87328ec2e94c004ab59803b00a71ce1afd0b5dfd167116"
-
-  bottle do
-    cellar :any
-    revision 1
-    sha256 "648ffdafe1a451f2e625c5a83221be9e3ce53feb37566e19e39dd73fc9d4b58c" => :el_capitan
-    sha256 "849e755495c4594fab0537d9e4c54f4c084a028c727ab4c5f17e5a11a9587cd9" => :yosemite
-    sha256 "d8e610269a57e687a258049a62145f4aac617f58dd5ff487cbac07e6b2c37ab2" => :mavericks
-  end
-
-  depends_on "pkg-config" => :build
-  depends_on "groonga"
-
-  def install
-    system "./configure"
-    system "make"
-
-    mkdir "stage"
-    system "make", "install", "DESTDIR=#{buildpath}/stage"
-    lib.install Dir["stage/**/lib/*"]
-    (share/"doc/groonga-normalizer-mysql").install Dir["stage/**/share/doc/groonga-normalizer-mysql/*"]
-  end
-
-  test do
-    groonga_bin = Formula["groonga"].opt_bin
-    IO.popen("#{groonga_bin}/groonga -n #{testpath}/test.db", "r+") {|io|
-      io.puts "register normalizers/mysql"
-      sleep 2
-      io.close_write
-      Process.kill("SIGINT", io.pid)
-      Process.wait(io.pid)
-      # expected returned result is like this:
-      # [[0,1447502555.38667,0.000824928283691406],true]\n
-      assert_match(/[[0,\d+.\d+,\d+.\d+],true]/, io.read)
-    }
-  end
-end
diff --git a/Formula/groonga.rb b/Formula/groonga.rb
index 314f305193..9f4b7dce05 100644
--- a/Formula/groonga.rb
+++ b/Formula/groonga.rb
@@ -22,6 +22,11 @@ class Groonga < Formula
 
   deprecated_option "enable-benchmark" => "with-benchmark"
 
+  resource "groonga-normalizer-mysql" do
+    url "http://packages.groonga.org/source/groonga-normalizer-mysql/groonga-normalizer-mysql-1.1.0.tar.gz"
+    sha256 "525daffdb999b647ce87328ec2e94c004ab59803b00a71ce1afd0b5dfd167116"
+  end
+
   depends_on "pkg-config" => :build
   depends_on "pcre"
   depends_on "msgpack"
@@ -36,6 +41,10 @@ class Groonga < Formula
     depends_on "zeromq"
   end
 
+  link_overwrite "lib/groonga/plugins/normalizers/"
+  link_overwrite "share/doc/groonga-normalizer-mysql/"
+  link_overwrite "lib/pkgconfig/groonga-normalizer-mysql.pc"
+
   def install
     args = %W[
       --prefix=#{prefix}
@@ -62,15 +71,33 @@ class Groonga < Formula
 
     system "./configure", *args
     system "make", "install"
+
+    resource("groonga-normalizer-mysql").stage do
+      ENV.prepend_path "PATH", bin
+      ENV.prepend_path "PKG_CONFIG_PATH", lib/"pkgconfig"
+      system "./configure", "--prefix=#{prefix}"
+      system "make"
+      system "make", "install"
+    end
   end
 
   test do
-    io = IO.popen("#{bin}/groonga -n #{testpath}/test.db", "r+")
-    io.puts("table_create --name TestTable --flags TABLE_HASH_KEY --key_type ShortText")
-    sleep 2
-    io.puts("shutdown")
-    # expected returned result is like this:
-    # [[0,1447502555.38667,0.000824928283691406],true]\n
-    assert_match(/\[\[0,\d+.\d+,\d+.\d+\],true\]/, io.read)
+    IO.popen("#{bin}/groonga -n #{testpath}/test.db", "r+") {|io|
+      io.puts("table_create --name TestTable --flags TABLE_HASH_KEY --key_type ShortText")
+      sleep 2
+      io.puts("shutdown")
+      # expected returned result is like this:
+      # [[0,1447502555.38667,0.000824928283691406],true]\n
+      assert_match(/\[\[0,\d+.\d+,\d+.\d+\],true\]/, io.read)
+    }
+
+    IO.popen("#{bin}/groonga -n #{testpath}/test-normalizer-mysql.db", "r+") {|io|
+      io.puts "register normalizers/mysql"
+      sleep 2
+      io.puts("shutdown")
+      # expected returned result is like this:
+      # [[0,1447502555.38667,0.000824928283691406],true]\n
+      assert_match(/\[\[0,\d+.\d+,\d+.\d+\],true\]/, io.read)
+    }
   end
 end