diff --git a/CHANGELOG b/CHANGELOG
index d2aa178..a1e1d51 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+2.41.1
+ * Possibility to include additional custom params when launching new test run
 2.41.0
  * Fixed bug with api access using api_key without login/pass
  * Fix for download_test_screenshots method to work with version
diff --git a/setup.py b/setup.py
index c55c0e7..4902a7f 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 import sys, os
 
 
-version = '2.41.0'
+version = '2.41.1'
 
 setup(name='testdroid',
       version=version,
diff --git a/testdroid/__init__.py b/testdroid/__init__.py
index b0926fc..4f5484f 100755
--- a/testdroid/__init__.py
+++ b/testdroid/__init__.py
@@ -5,7 +5,7 @@
 from optparse import OptionParser
 from datetime import datetime
 
-__version__ = '2.41.0'
+__version__ = '2.41.1'
 
 FORMAT = "%(message)s"
 logging.basicConfig(format=FORMAT)
@@ -426,7 +426,7 @@ def set_project_framework(self, project_id, frameworkId):
 
     """ Start a test run on a device group
     """
-    def start_test_run(self, project_id, device_group_id=None, device_model_ids=None, name=None):
+    def start_test_run(self, project_id, device_group_id=None, device_model_ids=None, name=None, additional_params={}):
         me = self.get_me()
         payload={} if name is None else {'name':name}
         project = self.get_project(project_id)
@@ -461,6 +461,7 @@ def start_test_run(self, project_id, device_group_id=None, device_model_ids=None
 
         # Start run
         path = "/users/%s/projects/%s/runs" %  ( me['id'], project_id )
+        payload.update(additional_params)
         reply = self.post(path=path, payload=payload)
         print "Test run id: %s" % reply['id']
         print "Name: %s" % reply['displayName']