diff --git a/lib/csscss/cli.rb b/lib/csscss/cli.rb
index 8f387b8..a95bce9 100644
--- a/lib/csscss/cli.rb
+++ b/lib/csscss/cli.rb
@@ -8,6 +8,7 @@ def initialize(argv)
       @compass            = false
       @ignored_properties = []
       @ignored_selectors  = []
+      @use_shorthand      = false
     end
 
     def run
@@ -45,7 +46,8 @@ def execute
         RedundancyAnalyzer.new(contents).redundancies(
           minimum:            @minimum,
           ignored_properties: @ignored_properties,
-          ignored_selectors:  @ignored_selectors
+          ignored_selectors:  @ignored_selectors,
+          use_shorthand:      @use_shorthand
         )
       end
 
@@ -102,6 +104,10 @@ def parse(argv)
           @ignored_selectors = ignored_selectors
         end
 
+        opts.on('--use-shorthand', "Don't parse shorthand notation") do
+          @use_shorthand = true
+        end
+
         opts.on("-V", "--version", "Show version") do |v|
           puts opts.ver
           exit
diff --git a/lib/csscss/redundancy_analyzer.rb b/lib/csscss/redundancy_analyzer.rb
index 04a1109..b27853d 100644
--- a/lib/csscss/redundancy_analyzer.rb
+++ b/lib/csscss/redundancy_analyzer.rb
@@ -9,6 +9,7 @@ def redundancies(opts = {})
       minimum            = opts[:minimum]
       ignored_properties = opts[:ignored_properties] || []
       ignored_selectors  = opts[:ignored_selectors] || []
+      use_shorthand      = opts[:use_shorthand] || false
 
       rule_sets = Parser::Css.parse(@raw_css)
       matches = {}
@@ -20,7 +21,11 @@ def redundancies(opts = {})
         rule_set.declarations.each do |dec|
           next if ignored_properties.include?(dec.property)
 
-          if parser = shorthand_parser(dec.property)
+          if !use_shorthand
+            parser = shorthand_parser(dec.property)
+          end
+
+          if parser
             if new_decs = parser.parse(dec.property, dec.value)
               if dec.property == "border"
                 %w(border-top border-right border-bottom border-left).each do |property|
diff --git a/test/csscss/redundancy_analyzer_test.rb b/test/csscss/redundancy_analyzer_test.rb
index efc8bfd..e63d720 100644
--- a/test/csscss/redundancy_analyzer_test.rb
+++ b/test/csscss/redundancy_analyzer_test.rb
@@ -266,6 +266,16 @@ module Csscss
       })
     end
 
+    it "use shorthand" do
+      css = %$
+        .foo { border: 1px solid #000; color: #000; padding: 10px 0; }
+        .bar { border: 1px solid #fff; color: #000; padding-top: 10px; }
+      $
+
+      redundancies = RedundancyAnalyzer.new(css).redundancies(use_shorthand:true)
+      redundancies[[sel(".bar"), sel(".foo")]].size.must_equal(1)
+    end
+
     # TODO: someday
     # it "reports duplication within the same selector" do
     #   css = %$