diff --git a/src/Bundle/ChillActivityBundle/Form/ActivityType.php b/src/Bundle/ChillActivityBundle/Form/ActivityType.php
index 7b9f24705..0fa2fdf76 100644
--- a/src/Bundle/ChillActivityBundle/Form/ActivityType.php
+++ b/src/Bundle/ChillActivityBundle/Form/ActivityType.php
@@ -20,6 +20,7 @@ use Chill\MainBundle\Entity\User;
 use Chill\MainBundle\Form\Type\ChillCollectionType;
 use Chill\MainBundle\Form\Type\ChillDateType;
 use Chill\MainBundle\Form\Type\CommentType;
+use Chill\MainBundle\Form\Type\PrivateCommentType;
 use Chill\MainBundle\Form\Type\ScopePickerType;
 use Chill\MainBundle\Form\Type\UserPickerType;
 use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
diff --git a/src/Bundle/ChillActivityBundle/Resources/views/Activity/new.html.twig b/src/Bundle/ChillActivityBundle/Resources/views/Activity/new.html.twig
index 8e078702c..6f6e1fe53 100644
--- a/src/Bundle/ChillActivityBundle/Resources/views/Activity/new.html.twig
+++ b/src/Bundle/ChillActivityBundle/Resources/views/Activity/new.html.twig
@@ -81,10 +81,13 @@
 {% endif %}
 
 {%- if form.comment is defined -%}
-    {# TODO .. public and private #}
     {{ form_row(form.comment) }}
 {% endif %}
 
+{%- if form.privateComment is defined -%}
+    {{ form_row(form.privateComment) }}
+{% endif %}
+
 {%- if form.attendee is defined -%}
     {{ form_row(form.attendee) }}
 {% endif %}
diff --git a/src/Bundle/ChillMainBundle/Entity/Embeddable/PrivateCommentEmbeddable.php b/src/Bundle/ChillMainBundle/Entity/Embeddable/PrivateCommentEmbeddable.php
index f3e35bb1f..f7fd41cb5 100644
--- a/src/Bundle/ChillMainBundle/Entity/Embeddable/PrivateCommentEmbeddable.php
+++ b/src/Bundle/ChillMainBundle/Entity/Embeddable/PrivateCommentEmbeddable.php
@@ -51,7 +51,10 @@ class PrivateCommentEmbeddable
 
     public function merge(PrivateCommentEmbeddable $newComment): self
     {
-        $mergedComments = $newComment->getComments() + $this->getComments();
+
+        $currentComments = null === $this->getComments() ? [] : $this->getComments();
+
+        $mergedComments = $newComment->getComments() + $currentComments;
 
         $this->setComments($mergedComments);