diff --git a/app/main/views/send.py b/app/main/views/send.py
index b8dd69949..0fa35eaab 100644
--- a/app/main/views/send.py
+++ b/app/main/views/send.py
@@ -835,12 +835,12 @@ def get_back_link(service_id, template, step_index):
                 template_id=template.id,
             )
     elif is_current_user_the_recipient() and step_index > 1:
-            return url_for(
-                'main.send_test_step',
-                service_id=service_id,
-                template_id=template.id,
-                step_index=step_index - 1,
-            )
+        return url_for(
+            'main.send_test_step',
+            service_id=service_id,
+            template_id=template.id,
+            step_index=step_index - 1,
+        )
 
     else:
         return url_for(
diff --git a/requirements_for_test.txt b/requirements_for_test.txt
index 3df3b52d8..2a0a7cee8 100644
--- a/requirements_for_test.txt
+++ b/requirements_for_test.txt
@@ -8,6 +8,6 @@ pytest-xdist==1.26.0
 coveralls==1.5.1
 beautifulsoup4==4.7.1
 freezegun==0.3.11
-flake8==3.6.0
+flake8==3.7.1
 flake8-print==3.1.0
 requests-mock==1.5.2