diff --git a/app/admin/routes.py b/app/admin/routes.py
index db802fed..881b0516 100644
--- a/app/admin/routes.py
+++ b/app/admin/routes.py
@@ -592,7 +592,7 @@ def admin_activities():
 def activity_json(activity_id):
     activity = ActivityPubLog.query.get_or_404(activity_id)
     return render_template('admin/activity_json.html', title=_('Activity JSON'),
-                           activity_json_data=json.loads(activity.activity_json), activity=activity,
+                           activity_json_data=activity.activity_json, activity=activity,
                            current_app=current_app,
                            site=g.site)
 
diff --git a/app/templates/admin/activity_json.html b/app/templates/admin/activity_json.html
index 9c3dcb0a..28960783 100644
--- a/app/templates/admin/activity_json.html
+++ b/app/templates/admin/activity_json.html
@@ -11,7 +11,7 @@
 <div class="row">
     <div class="col">
         <h1>{{ _('Activity JSON') }}</h1>
-        <code><pre>{{ activity_json_data | tojson(indent=2) }}</pre></code>
+        <code><p>{{ activity_json_data }}</p></code>
         {% if current_app.debug %}
         <p><a class="btn btn-warning" href="{{ url_for('admin.activity_replay', activity_id=activity.id) }}">Re-submit this activity</a></p>
         {% endif %}