diff --git a/rostful/__main__.py b/rostful/__main__.py
index 007d74c..6703ce3 100644
--- a/rostful/__main__.py
+++ b/rostful/__main__.py
@@ -44,7 +44,7 @@ def pyros_start(config, ros_args='', pyros_ctx_impl=None):
     try:
         from pyros.server.ctx_server import pyros_ctx
         from pyros.client.client import PyrosClient
-        from pyros_interfaces_ros import PyrosROS
+        from pyros_interfaces_ros.pyros_ros import PyrosROS
 
     except Exception as e:
         logging.error("pyros module is not accessible in sys.path. It is required to run rostful.", exc_info=True)
diff --git a/rostful/api_0_1/flask_views.py b/rostful/api_0_1/flask_views.py
index eea87d5..04ccdec 100644
--- a/rostful/api_0_1/flask_views.py
+++ b/rostful/api_0_1/flask_views.py
@@ -66,6 +66,9 @@ def get_query_bool(query_string, param_name):
 
 from webargs.flaskparser import FlaskParser, use_kwargs
 
+from pyros_interfaces_ros import definitions
+from pyros.client.client import PyrosServiceTimeout, PyrosServiceNotFound
+
 parser = FlaskParser()
 
 import urllib
@@ -102,10 +105,6 @@ class BackEnd(restful.Resource):   # TODO : unit test that stuff !!! http://flas
     def __init__(self):
         super(BackEnd, self).__init__()
 
-        # dynamic import
-        from pyros_interfaces_ros import definitions
-        from pyros.client.client import PyrosServiceTimeout, PyrosServiceNotFound
-
         self.node_client = context.get_pyros_client()  # we retrieve pyros client from app context
 
     # TODO: think about login rest service before disabling REST services if not logged in