diff --git a/tempest/cmd/run.py b/tempest/cmd/run.py
index 0d847bd218..6435717b70 100644
--- a/tempest/cmd/run.py
+++ b/tempest/cmd/run.py
@@ -149,7 +149,7 @@ class TempestRun(command.Command):
         discover_path = os.path.join(top_level_path, 'test_discover')
         file_contents = init.TESTR_CONF % (top_level_path, discover_path)
         with open('.testr.conf', 'w+') as testr_conf_file:
-                testr_conf_file.write(file_contents)
+            testr_conf_file.write(file_contents)
 
     def take_action(self, parsed_args):
         returncode = 0