diff --git a/httpie/client.py b/httpie/client.py
index f262f1b7..3474e119 100644
--- a/httpie/client.py
+++ b/httpie/client.py
@@ -52,9 +52,9 @@ def get_requests_kwargs(args):
             args.data = json.dumps(args.data) if args.data else None
 
     elif args.form and not args.files:
-            # If sending files, `requests` will set
-            # the `Content-Type` for us.
-            base_headers['Content-Type'] = FORM
+        # If sending files, `requests` will set
+        # the `Content-Type` for us.
+        base_headers['Content-Type'] = FORM
 
     credentials = None
     if args.auth:
diff --git a/httpie/sessions.py b/httpie/sessions.py
index 8bf7ea7e..4bea1665 100644
--- a/httpie/sessions.py
+++ b/httpie/sessions.py
@@ -30,7 +30,7 @@ def get_response(name, request_kwargs, read_only=False):
 
     """
     host = Host(request_kwargs['headers'].get('Host', None)
-    or urlparse(request_kwargs['url']).netloc.split('@')[-1])
+                or urlparse(request_kwargs['url']).netloc.split('@')[-1])
 
     session = Session(host, name)
     session.load()
@@ -52,7 +52,8 @@ def get_response(name, request_kwargs, read_only=False):
     except Exception:
         raise
     else:
-        if not read_only or session.is_new:
+        # Existing sessions with `read_only=True` don't get updated.
+        if session.is_new or not read_only:
             session.cookies = rsession.cookies
             session.save()
         return response