diff --git a/src/yunohost/data_migrations/0006_manage_sshd_config.py b/src/yunohost/data_migrations/0006_manage_sshd_config.py
index cd9204846..4af486b6e 100644
--- a/src/yunohost/data_migrations/0006_manage_sshd_config.py
+++ b/src/yunohost/data_migrations/0006_manage_sshd_config.py
@@ -1,4 +1,3 @@
-import subprocess
 import os
 import re
 
@@ -15,6 +14,8 @@ from yunohost.service import service_regen_conf, _get_conf_hashes, \
 
 logger = getActionLogger('yunohost.migration')
 
+SSHD_CONF = '/etc/ssh/sshd_config'
+
 
 class MyMigration(Migration):
     """
@@ -25,30 +26,30 @@ class MyMigration(Migration):
     def migrate(self):
 
         # Create sshd_config.d dir
-        if not os.path.exists('/etc/ssh/sshd_config.d'):
-            mkdir('/etc/ssh/sshd_config.d', 0755, uid='root', gid='root')
+        if not os.path.exists(SSHD_CONF + '.d'):
+            mkdir(SSHD_CONF + '.d', 0755, uid='root', gid='root')
 
         # Manage SSHd in all case
         if os.path.exists('/etc/yunohost/from_script'):
             rm('/etc/yunohost/from_script')
-            copyfile('/etc/ssh/sshd_config', '/etc/ssh/sshd_config.bkp')
+            copyfile(SSHD_CONF, '/etc/ssh/sshd_config.bkp')
             service_regen_conf(names=['ssh'], force=True)
-            copyfile('/etc/ssh/sshd_config.bkp', '/etc/ssh/sshd_config')
+            copyfile('/etc/ssh/sshd_config.bkp', SSHD_CONF)
 
         # If custom conf, add 'Include' instruction
-        ynh_hash = _get_conf_hashes('ssh')['/etc/ssh/sshd_config']
-        current_hash = _calculate_hash('/etc/ssh/sshd_config')
+        ynh_hash = _get_conf_hashes('ssh')[SSHD_CONF]
+        current_hash = _calculate_hash(SSHD_CONF)
+        include_rgx = r'^[ \t]*Include[ \t]+sshd_config\.d/\*[ \t]*(?:#.*)?$'
         if ynh_hash != current_hash:
 
             add_include = False
-            include_rgx = r'^[ \t]*Include[ \t]+sshd_config\.d/\*[ \t]*(?:#.*)?$'
-            for line in open('/etc/ssh/sshd_config'):
+            for line in open(SSHD_CONF):
                 if re.match(include_rgx, line) is not None:
                     add_include = True
                     break
 
             if add_include:
-                with open("/etc/ssh/sshd_config", "a") as conf:
+                with open(SSHD_CONF, "a") as conf:
                     conf.write('Include sshd_config.d/*')
 
         # Restart ssh and backward if it fail
@@ -56,11 +57,9 @@ class MyMigration(Migration):
             self.backward()
             raise MoulinetteError(m18n.n("migration_0006_cancel"))
 
-
     def backward(self):
         # We don't backward completely but it should be enough
 
-        copyfile('/etc/ssh/sshd_config.bkp', '/etc/ssh/sshd_config')
+        copyfile('/etc/ssh/sshd_config.bkp', SSHD_CONF)
         if not _run_service_command('restart', 'ssh'):
             raise MoulinetteError(m18n.n("migration_0006_cannot_restart"))
-
diff --git a/src/yunohost/data_migrations/0007_reset_sshd_config.py b/src/yunohost/data_migrations/0007_reset_sshd_config.py
index a9fb9fa14..5a097968d 100644
--- a/src/yunohost/data_migrations/0007_reset_sshd_config.py
+++ b/src/yunohost/data_migrations/0007_reset_sshd_config.py
@@ -1,15 +1,12 @@
-import subprocess
-import os
 import re
 
-from shutil import copyfile
-
 from moulinette import m18n
 from moulinette.core import MoulinetteError
 from moulinette.utils.log import getActionLogger
 
 from yunohost.tools import Migration
-from yunohost.service import service_regen_conf, _get_conf_hashes, _calculate_hash
+from yunohost.service import service_regen_conf, _get_conf_hashes, \
+                             _calculate_hash
 
 logger = getActionLogger('yunohost.migration')
 
@@ -37,7 +34,6 @@ class MyMigration(Migration):
 
         return "manual"
 
-
     @property
     def disclaimer(self):