diff --git a/lib/tfw/components/snapshot_provider.py b/lib/tfw/components/snapshot_provider.py
index 052966b..e051238 100644
--- a/lib/tfw/components/snapshot_provider.py
+++ b/lib/tfw/components/snapshot_provider.py
@@ -41,18 +41,28 @@ class SnapshotProvider:
     def take_snapshot(self):
         if self._head_detached:
             self._checkout_new_branch_from_head()
-        self._run(('git', 'add', '-A'))
-        self._run(('git', 'commit', '-m', 'Snapshot'))
+        self._run((
+            'git', 'add',
+            '-A'
+        ))
+        self._run((
+            'git', 'commit',
+            '-m', 'Snapshot'
+        ))
 
     def _checkout_new_branch_from_head(self):
         head_hash = self._get_head_hash()
         self._run((
             'git', 'checkout',
-            '-b', head_hash, head_hash
+            '-b', head_hash,
+            head_hash
         ))
 
     def _get_head_hash(self):
-        return self._get_stdout(('git', 'rev-parse', 'HEAD'))
+        return self._get_stdout((
+            'git', 'rev-parse',
+            'HEAD'
+        ))
 
     def restore_snapshot(self, date):
         commit = self._get_commit_from_timestamp(date)