diff --git a/src/postorius/views/list.py b/src/postorius/views/list.py
index f867761..482dbce 100644
--- a/src/postorius/views/list.py
+++ b/src/postorius/views/list.py
@@ -666,12 +666,12 @@
     """
     # There are archivers to enable.
     if len(to_activate) > 0:
-        # If the archiver shows up in the data set *after* the update, 
+        # If the archiver shows up in the data set *after* the update,
         # we can show a success message.
         activation_postponed = []
         activation_success = []
         for archiver in to_activate:
-            if after_submission[archiver] == True:
+            if after_submission[archiver] is True:
                 activation_success.append(archiver)
             else:
                 activation_postponed.append(archiver)