diff --git a/dox/cmd.py b/dox/cmd.py
index ac52aad..fb2cd05 100644
--- a/dox/cmd.py
+++ b/dox/cmd.py
@@ -91,10 +91,10 @@ def main():
     return runner(args)
 
 
-def run_dox(args, images, command):
+def run_dox(args, images, command, image_name):
     # Run
     try:
-        run = functools.partial(dox.runner.Runner(args).run,
+        run = functools.partial(dox.runner.Runner(args, image_name).run,
                                 command=command)
         map(run, images)
     except Exception:
@@ -116,7 +116,7 @@ def runner(args):
     if args.command:
         command = dox.config.cmdline.CommandLine(args.extra_args)
         logger.debug("Command source is the command line")
-        return run_dox(args, args_images, command)
+        return run_dox(args, args_images, command, image_name="commandline")
 
     if args.environment:
         sections = args.environment.split(',')
@@ -134,4 +134,7 @@ def runner(args):
         command = dox.commands.Commands(args.extra_args, options)
         logger.debug("Command source is %s, section %s" % (
             command.source.source_name(), section))
-        run_dox(args, images, command)
+
+        # TODO(chmouel): add to section a proper image_name that include the
+        # type of backend i.e: dox_yaml/tox_init
+        run_dox(args, images, command, image_name=section)
diff --git a/dox/runner.py b/dox/runner.py
index 0a5eba2..a01b91e 100644
--- a/dox/runner.py
+++ b/dox/runner.py
@@ -32,11 +32,14 @@ logger = logging.getLogger(__name__)
 
 class Runner(object):
 
-    def __init__(self, args):
+    def __init__(self, args, image_name=None):
+        image_name = image_name and "_" + image_name or ""
         self.args = args
         self.project = os.path.basename(os.path.abspath('.'))
-        self.base_image_name = 'dox_%s_base' % self.project
-        self.test_image_name = 'dox_%s_test' % self.project
+        self.base_image_name = '_dox/%s%s_base' % (self.project,
+                                                   image_name)
+        self.test_image_name = '_dox/%s%s_test' % (self.project,
+                                                   image_name)
         self.user_map = self._get_user_mapping()
         self.path_map = self._get_path_mapping()
 
diff --git a/dox/tests/test_cmd.py b/dox/tests/test_cmd.py
index 1ce54a0..a1fe653 100644
--- a/dox/tests/test_cmd.py
+++ b/dox/tests/test_cmd.py
@@ -76,5 +76,5 @@ class TestCmd(base.TestCase):
 
     @mock.patch('dox.runner.Runner')
     def test_run_dox(self, m_runner):
-        dox.cmd.run_dox(default_argp, ['1', '2', '3'], '/bin/echo')
+        dox.cmd.run_dox(default_argp, ['1', '2', '3'], '/bin/echo', "name")
         self.assertEqual(1, m_runner.call_count)