diff --git a/heatclient/tests/test_shell.py b/heatclient/tests/test_shell.py
index 3ac3efff..77e3bd24 100644
--- a/heatclient/tests/test_shell.py
+++ b/heatclient/tests/test_shell.py
@@ -1497,6 +1497,103 @@ class ShellTestUserPass(ShellBase):
         for r in required:
             self.assertRegexpMatches(update_text, r)
 
+    @httpretty.activate
+    def test_stack_update_with_existing_and_default_parameters(self):
+        self.register_keystone_auth_fixture()
+        template_file = os.path.join(TEST_VAR_DIR, 'minimal.template')
+        template_data = open(template_file).read()
+        resp = fakes.FakeHTTPResponse(
+            202,
+            'Accepted',
+            {},
+            'The request is accepted for processing.')
+        expected_data = {
+            'files': {},
+            'environment': {},
+            'template': jsonutils.loads(template_data),
+            'parameters': {},
+            'clear_parameters': ['InstanceType', 'DBUsername',
+                                 'DBPassword', 'KeyPairName',
+                                 'LinuxDistribution'],
+            'disable_rollback': False}
+        http.HTTPClient.json_request(
+            'PATCH', '/stacks/teststack2/2',
+            data=expected_data,
+            headers={'X-Auth-Key': 'password', 'X-Auth-User': 'username'}
+        ).AndReturn((resp, None))
+        fakes.script_heat_list()
+
+        self.m.ReplayAll()
+
+        update_text = self.shell(
+            'stack-update teststack2/2 '
+            '--template-file=%s '
+            '--enable-rollback '
+            '--existing '
+            '--clear-parameter=InstanceType '
+            '--clear-parameter=DBUsername '
+            '--clear-parameter=DBPassword '
+            '--clear-parameter=KeyPairName '
+            '--clear-parameter=LinuxDistribution' % template_file)
+
+        required = [
+            'stack_name',
+            'id',
+            'teststack2',
+            '1'
+        ]
+        for r in required:
+            self.assertRegexpMatches(update_text, r)
+
+    @httpretty.activate
+    def test_stack_update_with_patched_and_default_parameters(self):
+        self.register_keystone_auth_fixture()
+        template_file = os.path.join(TEST_VAR_DIR, 'minimal.template')
+        template_data = open(template_file).read()
+        resp = fakes.FakeHTTPResponse(
+            202,
+            'Accepted',
+            {},
+            'The request is accepted for processing.')
+        expected_data = {
+            'files': {},
+            'environment': {},
+            'template': jsonutils.loads(template_data),
+            'parameters': {'"KeyPairName': 'updated_key"'},
+            'clear_parameters': ['InstanceType', 'DBUsername',
+                                 'DBPassword', 'KeyPairName',
+                                 'LinuxDistribution'],
+            'disable_rollback': False}
+        http.HTTPClient.json_request(
+            'PATCH', '/stacks/teststack2/2',
+            data=expected_data,
+            headers={'X-Auth-Key': 'password', 'X-Auth-User': 'username'}
+        ).AndReturn((resp, None))
+        fakes.script_heat_list()
+
+        self.m.ReplayAll()
+
+        update_text = self.shell(
+            'stack-update teststack2/2 '
+            '--template-file=%s '
+            '--enable-rollback '
+            '--existing '
+            '--parameters="KeyPairName=updated_key" '
+            '--clear-parameter=InstanceType '
+            '--clear-parameter=DBUsername '
+            '--clear-parameter=DBPassword '
+            '--clear-parameter=KeyPairName '
+            '--clear-parameter=LinuxDistribution' % template_file)
+
+        required = [
+            'stack_name',
+            'id',
+            'teststack2',
+            '1'
+        ]
+        for r in required:
+            self.assertRegexpMatches(update_text, r)
+
     @httpretty.activate
     def test_stack_delete(self):
         self.register_keystone_auth_fixture()
diff --git a/heatclient/v1/shell.py b/heatclient/v1/shell.py
index fa8e19ae..93b5d61f 100644
--- a/heatclient/v1/shell.py
+++ b/heatclient/v1/shell.py
@@ -368,6 +368,11 @@ def do_stack_show(hc, args):
            'Parameters specified in --parameters will patch over the existing '
            'values in the current stack. Parameters omitted will keep '
            'the existing values.')
+@utils.arg('-c', '--clear-parameter', metavar='<PARAMETER>',
+           help='Remove the parameters from the set of parameters of current '
+           'stack for the stack-update. The default value in the template '
+           'will be used. This can be specified multiple times.',
+           action='append')
 @utils.arg('id', metavar='<NAME or ID>',
            help='Name or ID of stack to update.')
 def do_update(hc, args):
@@ -409,6 +414,11 @@ def do_update(hc, args):
            'Parameters specified in --parameters will patch over the existing '
            'values in the current stack. Parameters omitted will keep '
            'the existing values.')
+@utils.arg('-c', '--clear-parameter', metavar='<PARAMETER>',
+           help='Remove the parameters from the set of parameters of current '
+           'stack for the stack-update. The default value in the template '
+           'will be used. This can be specified multiple times.',
+           action='append')
 @utils.arg('id', metavar='<NAME or ID>',
            help='Name or ID of stack to update.')
 def do_stack_update(hc, args):
@@ -434,6 +444,8 @@ def do_stack_update(hc, args):
 
     if args.timeout:
         fields['timeout_mins'] = args.timeout
+    if args.clear_parameter:
+        fields['clear_parameters'] = list(args.clear_parameter)
 
     if args.rollback is not None:
         try: