diff --git a/README.txt b/README.txt
index d9841b2..7899d18 100644
--- a/README.txt
+++ b/README.txt
@@ -95,6 +95,10 @@ Passing variables and key-values to httperf
         # arguments, key-value arguments
         perf = Httperf('hog', 'ssl', path='/path/to/httperf',
                 server='www.example.com'...)
+
+        # or only key-value arguments
+        perf = Httperf(hog=True, ssl=True, path='/path/to/httperf',
+                server='www.example.com'...)
         ...
 
 
diff --git a/httperfpy/httperfpy.py b/httperfpy/httperfpy.py
index a42801d..b543172 100644
--- a/httperfpy/httperfpy.py
+++ b/httperfpy/httperfpy.py
@@ -58,9 +58,25 @@ def __cmd(self):
         for key in self.params.keys():
             val = str(self.params[key])
             key = key.replace('_', '-')
-            args.append('--%s="%s"' % (key, val))
+            if key in self.__boolean_params():
+                args.append('--%s' % key)
+            else:
+                args.append('--%s="%s"' % (key, val))
+
         return ' '.join(args)
 
+    def __boolean_params(self):
+        return [
+            "hog",
+            "no_host_hdr",
+            "retry_on_failure",
+            "session_cookies",
+            "ssl",
+            "ssl_no_reuse",
+            "verbose",
+            "version"
+        ]
+
     def __params(self):
         return {
             "add_header": None,
diff --git a/setup.py b/setup.py
index ea26bc5..1983c58 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name='httperfpy',
-    version='0.0.4',
+    version='0.0.5',
     author='Joshua P. Mervine',
     author_email='joshua@mervine.net',
     packages=['httperfpy'],
diff --git a/unit/httperf_unit.py b/unit/httperf_unit.py
index df6657f..52f39df 100644
--- a/unit/httperf_unit.py
+++ b/unit/httperf_unit.py
@@ -1,10 +1,11 @@
 import unit_helper
 import unittest
-import re, os, sys
+import re
 
 # import everything unit_helper does
 from unit_helper import *
 
+
 class HttperfTestCase(unittest.TestCase):
 
     def testHttperfDisplayParams(self):
@@ -27,16 +28,36 @@ def testInitWithPathSetsPath(self):
         self.assertEqual(httperf1.path, unit_helper.httperf_path)
 
     def testInitWithArgsCreatesArg(self):
-        httperf = Httperf(server="localhost", port=8080, num_conns=100)
+        # arg method
+        httperf = Httperf('hog', server="localhost", port=8080, num_conns=100)
         self.assertEqual(httperf.params["server"], "localhost")
+        self.assertEqual(('--hog' in httperf.args), True)
+
+        res_str = httperf.run()
+        m = re.search('--hog', res_str)
+        self.assertNotEqual(m, None)
+
+        m = re.search('--hog=', res_str)
+        self.assertEqual(m, None)
+
+        # param method
+        httperf = Httperf(hog=True, server="localhost", port=8080, num_conns=100)
+        self.assertEqual(httperf.params["hog"], True)
+
+        res_str = httperf.run()
+        m = re.search('--hog', res_str)
+        self.assertNotEqual(m, None)
+
+        m = re.search('--hog=', res_str)
+        self.assertEqual(m, None)
 
     def testInitWithBadKwArg(self):
         with self.assertRaises(Exception):
-            httperf = Httperf(bad="localhost")
+            Httperf(bad="localhost")
 
     def testInitWithBadArg(self):
         with self.assertRaises(Exception):
-            httperf = Httperf('bad')
+            Httperf('bad')
 
     def testUpdateOptionAlreadyCreated(self):
         httperf = Httperf(server="localhost")
@@ -52,13 +73,14 @@ def testRun(self):
         httperf = Httperf()
         global res_string
         res_string = httperf.run()
+
         self.assertNotEqual(res_string, None)
 
     def testRunResultsNotEmpty(self):
         self.assertNotEqual(res_string, "")
 
     def testRunResultsContainsHttperfResults(self):
-        m = re.search('httperf --client=0/1 --server=localhost' , res_string)
+        m = re.search('httperf --client=0/1 --server=localhost', res_string)
         self.assertNotEqual(m, None)
 
     def testRunResultsWithParser(self):
@@ -76,4 +98,3 @@ def testSluggedCmdArgs(self):
 
 if __name__ == "__main__":
     unittest.main()
-