diff --git a/citools/fabfile.py b/citools/fabfile.py
index 7e6985c..99dbead 100644
--- a/citools/fabfile.py
+++ b/citools/fabfile.py
@@ -179,7 +179,7 @@ def getlistpackageslocal(dpkgl_file):
             result[row[0]] = [row[0], row[1]]
     return result
 
-def install_production_packages(clean_machine, production_machine):
+def install_production_packages(clean_machine, production_machine, production_backend_machine=None):
     """
     This function get dpkg -l from url from production and install it including versions
     Has two required arguments the clean machine for installing production packages and production machine for comparation packages
@@ -210,6 +210,11 @@ def install_production_packages(clean_machine, production_machine):
     
     dpkgl_file = urllib.urlopen('http://cml.tunel.chservices.cz/cgi-bin/dpkg.pl?host=%s' % (production_machine,))
     PACKAGES_LIST = getlistpackages(dpkgl_file)
+    if production_backend_machine:
+        dpkgl_file = urllib.urlopen('http://cml.tunel.chservices.cz/cgi-bin/dpkg.pl?host=%s' % (production_backend_machine,))
+        backend_packages_list = getlistpackages(dpkgl_file)
+        backend_packages_list.update(PACKAGES_LIST)
+        PACKAGES_LIST = backend_packages_list 
 
     client = paramiko.SSHClient()
     client.load_system_host_keys()
diff --git a/citools/pavement.py b/citools/pavement.py
index 1c38d2e..76a4cdc 100644
--- a/citools/pavement.py
+++ b/citools/pavement.py
@@ -242,11 +242,13 @@ def ping_buildmaster():
 @task
 @cmdopts([
     ('production-machine=', 'p', 'Production machine'),
-    ('clean-machine=', 'c', 'Clean machine')
+    ('clean-machine=', 'c', 'Clean machine'),
+    ('production-backend-machine=', 'b', 'Production backend machine')
 ])
 def install_production_packages(options):
     production_machine = getattr(options, "production_machine")
     clean_machine = getattr(options, "clean_machine")
+    production_backend_machine = getattr(options, "production_backend_machine", None)
     fabfile_name = getattr(options, "fabfile_name", '')
     # import your fabfile
     if fabfile_name != '':
@@ -254,7 +256,7 @@ def install_production_packages(options):
     else:
         fabfile = import_fabfile()
     # invoke fabric task
-    args = (clean_machine, production_machine)
+    args = (clean_machine, production_machine, production_backend_machine)
     options.packages_list = fab(clean_machine, 
 				fabfile['install_production_packages'], 
 				resolve,