diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/form.html.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/form.html.twig
index 720da85750526..400f9d09260bf 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/form.html.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/form.html.twig
@@ -3,6 +3,9 @@
 {% from _self import form_tree_entry, form_tree_details %}
 
 {% block toolbar %}
+    {% if collector.data is not iterable %}
+        {% set unserialia = collector.unserialize(collector.data) %}
+    {% endif %}
     {% if collector.data.nb_errors > 0 or collector.data.forms|length %}
         {% set status_color = collector.data.nb_errors ? 'red' : '' %}
         {% set icon %}
@@ -28,6 +31,9 @@
 {% endblock %}
 
 {% block menu %}
+    {% if collector.data is not iterable %}
+        {% set unserialia = collector.unserialize(collector.data) %}
+    {% endif %}
     <span class="label label-status-{{ collector.data.nb_errors ? 'error' }} {{ collector.data.forms is empty ? 'disabled' }}">
         <span class="icon">{{ include('@WebProfiler/Icon/form.svg') }}</span>
         <strong>Forms</strong>