diff --git a/modoboa_installer/scripts/__init__.py b/modoboa_installer/scripts/__init__.py
index 3edfa66..43dab70 100644
--- a/modoboa_installer/scripts/__init__.py
+++ b/modoboa_installer/scripts/__init__.py
@@ -23,3 +23,16 @@ def install(appname, config, upgrade):
     except utils.FatalError as inst:
         utils.printcolor(u"{}".format(inst), utils.RED)
         sys.exit(1)
+
+def backup(config):
+    """Backup instance"""
+    try:
+        script = importlib.import_module(
+                "modoboa_installer.scripts.backup")
+    except ImportError:
+        print("Error importing backup")
+    try:
+        getattr(script, "BACKUP"())(config).run()
+    except utils.FatalError as inst:
+        utils.printcolor(u"{}".format(inst), utils.RED)
+        sys.exit(1)
diff --git a/modoboa_installer/scripts/backup.py b/modoboa_installer/scripts/backup.py
index 5fa1af8..588ca99 100644
--- a/modoboa_installer/scripts/backup.py
+++ b/modoboa_installer/scripts/backup.py
@@ -1,9 +1,10 @@
 """Backup script for pre-installed instance"""
 
-import shutil
-import utils
 import os
+import shutil
+
 from .. import database
+from .. import utils
 
 #TODO: have version of each modoboa componenents saved into the config file to restore the same version  
 
diff --git a/run.py b/run.py
index f09022d..213b89a 100755
--- a/run.py
+++ b/run.py
@@ -15,7 +15,6 @@ from modoboa_installer import scripts
 from modoboa_installer import ssl
 from modoboa_installer import system
 from modoboa_installer import utils
-from modoboa_installer.scripts import backup
 
 def installation_disclaimer(args, config):
     """Display installation disclaimer."""
@@ -105,8 +104,7 @@ def main(input_args):
         upgrade_disclaimer(config)
     elif args.backup:
         backup_disclamer()
-        backupProcess = backup.Backup(config)
-        backupProcess.run()
+        scripts.backup(config)
         return
     else:
         installation_disclaimer(args, config)