diff --git a/lib/jekyll/core_ext.rb b/lib/jekyll/core_ext.rb
index dd9af277..43edcb13 100644
--- a/lib/jekyll/core_ext.rb
+++ b/lib/jekyll/core_ext.rb
@@ -53,21 +53,3 @@ class Hash
     dup.symbolize_keys!
   end
 end
-
-module Enumerable
-  def ensure_leading_slash(path)
-    path[0..0] == "/" ? path : "/#{path}"
-  end
-
-  # Returns true if path matches against any glob pattern.
-  # Look for more detail about glob pattern in method File::fnmatch.
-  def glob_include?(e)
-    entry = ensure_leading_slash(e)
-    any? do |exp|
-      item = ensure_leading_slash(exp)
-      Jekyll.logger.debug "glob_include?(#{entry})"
-      Jekyll.logger.debug "    ==> File.fnmatch?(#{item}, #{entry}) == #{File.fnmatch?(item, entry)}"
-      File.fnmatch?(item, entry)
-    end
-  end
-end
diff --git a/lib/jekyll/entry_filter.rb b/lib/jekyll/entry_filter.rb
index 6ecca92d..11db9e11 100644
--- a/lib/jekyll/entry_filter.rb
+++ b/lib/jekyll/entry_filter.rb
@@ -31,7 +31,7 @@ module Jekyll
     end
 
     def included?(entry)
-      site.include.glob_include?(entry)
+      glob_include?(site.include, entry)
     end
 
     def special?(entry)
@@ -43,7 +43,7 @@ module Jekyll
     end
 
     def excluded?(entry)
-      excluded = site.exclude.glob_include?(relative_to_source(entry))
+      excluded = glob_include?(site.exclude, relative_to_source(entry))
       Jekyll.logger.debug "excluded?(#{relative_to_source(entry)}) ==> #{excluded}"
       excluded
     end
@@ -51,5 +51,21 @@ module Jekyll
     def symlink?(entry)
       File.symlink?(entry) && site.safe
     end
+
+    def ensure_leading_slash(path)
+      path[0..0] == "/" ? path : "/#{path}"
+    end
+
+    # Returns true if path matches against any glob pattern.
+    # Look for more detail about glob pattern in method File::fnmatch.
+    def glob_include?(enum, e)
+      entry = ensure_leading_slash(e)
+      enum.any? do |exp|
+        item = ensure_leading_slash(exp)
+        Jekyll.logger.debug "glob_include?(#{entry})"
+        Jekyll.logger.debug "    ==> File.fnmatch?(#{item}, #{entry}) == #{File.fnmatch?(item, entry)}"
+        File.fnmatch?(item, entry)
+      end
+    end
   end
 end
diff --git a/test/test_core_ext.rb b/test/test_core_ext.rb
index 5eb77e34..c3e62cb5 100644
--- a/test/test_core_ext.rb
+++ b/test/test_core_ext.rb
@@ -63,32 +63,4 @@ class TestCoreExt < Test::Unit::TestCase
     end
 
   end
-
-  context "enumerable" do
-    context "glob_include?" do
-      should "return false with no glob patterns" do
-        assert ![].glob_include?("a.txt")
-      end
-
-      should "return false with all not match path" do
-        data = ["a*", "b?"]
-        assert !data.glob_include?("ca.txt")
-        assert !data.glob_include?("ba.txt")
-      end
-
-      should "return true with match path" do
-        data = ["a*", "b?", "**/a*"]
-        assert data.glob_include?("a.txt")
-        assert data.glob_include?("ba")
-        assert data.glob_include?("c/a/a.txt")
-        assert data.glob_include?("c/a/b/a.txt")
-      end
-
-      should "match even if there is no leading slash" do
-        data = ['vendor/bundle']
-        assert data.glob_include?('/vendor/bundle')
-        assert data.glob_include?('vendor/bundle')
-      end
-    end
-  end
 end
diff --git a/test/test_entry_filter.rb b/test/test_entry_filter.rb
index f5e02174..ce50b6a8 100644
--- a/test/test_entry_filter.rb
+++ b/test/test_entry_filter.rb
@@ -71,4 +71,38 @@ class TestEntryFilter < Test::Unit::TestCase
       assert_not_equal [], site.static_files
     end
   end
+
+  context "glob_include?" do
+    setup do
+      stub(Jekyll).configuration do
+        Jekyll::Configuration::DEFAULTS.merge({'source' => source_dir, 'destination' => dest_dir})
+      end
+      @site = Site.new(Jekyll.configuration)
+      @filter = EntryFilter.new(@site)
+    end
+
+    should "return false with no glob patterns" do
+      assert !@filter.glob_include?([], "a.txt")
+    end
+
+    should "return false with all not match path" do
+      data = ["a*", "b?"]
+      assert !@filter.glob_include?(data, "ca.txt")
+      assert !@filter.glob_include?(data, "ba.txt")
+    end
+
+    should "return true with match path" do
+      data = ["a*", "b?", "**/a*"]
+      assert @filter.glob_include?(data, "a.txt")
+      assert @filter.glob_include?(data, "ba")
+      assert @filter.glob_include?(data, "c/a/a.txt")
+      assert @filter.glob_include?(data, "c/a/b/a.txt")
+    end
+
+    should "match even if there is no leading slash" do
+      data = ['vendor/bundle']
+      assert @filter.glob_include?(data, '/vendor/bundle')
+      assert @filter.glob_include?(data, 'vendor/bundle')
+    end
+  end
 end