diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index 5ab1bb67..01551061 100644
--- a/lib/linguist/vendor.yml
+++ b/lib/linguist/vendor.yml
@@ -30,6 +30,10 @@
 - (^|/)jquery([^.]*)(\.min)?\.js$
 - (^|/)jquery\-\d\.\d(\.\d)?(\.min)?\.js$
 
+# jQuery UI
+- (^|/)jquery\-ui(\-\d\.\d+(\.\d+)?)?(\.\w+)?(\.min)?\.(js|css)$
+- (^|/)jquery\.(ui|effects)\.([^.]*)(\.min)?\.(js|css)$
+
 # Prototype
 - (^|/)prototype(.*)\.js$
 - (^|/)effects\.js$
diff --git a/test/test_blob.rb b/test/test_blob.rb
index c8f103ee..9825e9f9 100644
--- a/test/test_blob.rb
+++ b/test/test_blob.rb
@@ -207,6 +207,23 @@ class TestBlob < Test::Unit::TestCase
     assert blob("public/javascripts/jquery-1.6.1.js").vendored?
     assert blob("public/javascripts/jquery-1.6.1.min.js").vendored?
     assert !blob("public/javascripts/jquery.github.menu.js").vendored?
+    
+    # jQuery UI
+    assert blob("themes/ui-lightness/jquery-ui.css").vendored?
+    assert blob("themes/ui-lightness/jquery-ui-1.8.22.custom.css").vendored?
+    assert blob("themes/ui-lightness/jquery.ui.accordion.css").vendored?
+    assert blob("ui/i18n/jquery.ui.datepicker-ar.js").vendored?
+    assert blob("ui/i18n/jquery-ui-i18n.js").vendored?
+    assert blob("ui/jquery.effects.blind.js").vendored?
+    assert blob("ui/jquery-ui-1.8.22.custom.js").vendored?
+    assert blob("ui/jquery-ui-1.8.22.custom.min.js").vendored?
+    assert blob("ui/jquery-ui-1.8.22.js").vendored?
+    assert blob("ui/jquery-ui-1.8.js").vendored?
+    assert blob("ui/jquery-ui.min.js").vendored?
+    assert blob("ui/jquery.ui.accordion.js").vendored?
+    assert blob("ui/minified/jquery.effects.blind.min.js").vendored?
+    assert blob("ui/minified/jquery.ui.accordion.min.js").vendored?
+    
 
     # MooTools
     assert blob("public/javascripts/mootools-core-1.3.2-full-compat.js").vendored?