diff --git a/vdirsyncer/cli/tasks.py b/vdirsyncer/cli/tasks.py
index ea97715..88b9f7a 100644
--- a/vdirsyncer/cli/tasks.py
+++ b/vdirsyncer/cli/tasks.py
@@ -24,8 +24,8 @@ def sync_pair(wq, pair_name, collections_to_sync, general, all_pairs,
         config_a, config_b = all_storages[a_name], all_storages[b_name]
     except KeyError as e:
         raise CliError('Pair {}: Storage {} not found. These are the '
-         'configured storages: {}'
-         .format(pair_name, str(e), list(all_storages)))
+                       'configured storages: {}'
+                       .format(pair_name, str(e), list(all_storages)))
 
     all_collections = dict(collections_for_pair(
         general['status_path'], a_name, b_name, pair_name,