diff --git a/lib/mobvious/strategies/url.rb b/lib/mobvious/strategies/url.rb
index 322a748..dec5e79 100644
--- a/lib/mobvious/strategies/url.rb
+++ b/lib/mobvious/strategies/url.rb
@@ -10,7 +10,9 @@ class URL
       # @param rules
       #   A hash containing regular expressions mapped to symbols. The regular expression
       #   is evaluated against the whole URL of the request (including `http://`). If matching,
-      #   the corresponding symbol is returned as the device type.
+      #   the corresponding symbol is returned as the device type.  
+      #   **or**  
+      #   a symbol for one of predefined detection rules (`:mobile_path_rules`)
       # @param options
       #   A hash with strategy options.  
       #   `disable_if_referer_set: true` disables the strategy if HTTP Referer header is set  
@@ -18,8 +20,12 @@ class URL
       #   given regular expression  
       #   `disable_unless_referer_matches: /regex/` disables the strategy if HTTP Referer
       #   doesn't match given regular expression  
-      def initialize(rules = MOBILE_PATH_RULES, options = {})
-        @rules = rules
+      def initialize(rules = :mobile_path_rules, options = {})
+        if rules.is_a? Symbol
+          @rules = eval(rules.to_s.upcase)
+        else
+          @rules = rules
+        end
 
         default_options = {
           disable_if_referer_set: false,
diff --git a/spec/mobvious/strategies/url_spec.rb b/spec/mobvious/strategies/url_spec.rb
index 1be8876..54a408f 100644
--- a/spec/mobvious/strategies/url_spec.rb
+++ b/spec/mobvious/strategies/url_spec.rb
@@ -82,6 +82,16 @@ class URLSpec < MiniTest::Spec
         @strategy.get_device_type(@request).must_equal :mobile
       end
     end
+
+    describe "using custom rules" do
+      before do
+        @strategy = URL.new(/\.foo\./ => :test)
+      end
+
+      it "returns :test for any url" do
+        @strategy.get_device_type(@request).must_equal :test
+      end
+    end
   end
 end
 end