diff --git a/Ruby/spec/terminal-notifier_spec.rb b/Ruby/spec/terminal-notifier_spec.rb
index eaa59b7..226249c 100644
--- a/Ruby/spec/terminal-notifier_spec.rb
+++ b/Ruby/spec/terminal-notifier_spec.rb
@@ -15,6 +15,13 @@
     IO.expects(:popen).with(command).yields(StringIO.new('output'))
     TerminalNotifier.execute(false, :message => '[ZOMG] "OH YEAH"')
   end
+ 
+  it "correctly escapes arguments that start with a dash" do
+    command = [TerminalNotifier::BIN_PATH, '-message', ' -kittens', '-title', ' -rule']
+    command = Shellwords.join(command) if RUBY_VERSION < '1.9'
+    IO.expects(:popen).with(command).yields(StringIO.new('output'))
+    TerminalNotifier.execute(false, :message => '-kittens', :title => '-rule')
+  end
 
   it "returns the result output of the command" do
     TerminalNotifier.execute(false, 'help' => '').should == `'#{TerminalNotifier::BIN_PATH}' -help`