diff --git a/app/scodoc/sco_placement.py b/app/scodoc/sco_placement.py
index ac39c2bba..c2ef9d937 100644
--- a/app/scodoc/sco_placement.py
+++ b/app/scodoc/sco_placement.py
@@ -88,10 +88,9 @@ def _get_group_info(evaluation_id):
         groups_tree[partition][group_name] = group_id
         if partition != TOUS:
             has_groups = True
-            nb_groups = len(groups_tree)
         else:
             has_groups = False
-            nb_groups = 1
+    nb_groups = sum([len(groups_tree[p]) for p in groups_tree])
     return groups_tree, has_groups, nb_groups
 
 
diff --git a/app/templates/scodoc/forms/placement.html b/app/templates/scodoc/forms/placement.html
index 5d2c3c205..7631b743c 100644
--- a/app/templates/scodoc/forms/placement.html
+++ b/app/templates/scodoc/forms/placement.html
@@ -3,7 +3,7 @@
 {% macro render_field(field) %}
 <tr>
     <td class="wtf-field">{{ field.label }}</td>
-    <td class="wtf-field">{{ field()|safe }}
+    <td class="wtf-field">{{ field(**kwargs)|safe }}
         {% if field.errors %}
         <ul class=errors>
             {% for error in field.errors %}
@@ -27,7 +27,7 @@
                 {{ render_field(form.nb_rangs) }}
                 {{ render_field(form.etiquetage) }}
                 {% if form.has_groups %}
-                {{ render_field(form.groups) }}
+                {{ render_field(form.groups, size=form.nb_groups) }}
                 <!-- Tentative de recréer le choix des groupes sous forme de cases à cocher // demande à créer des champs wtf dynamiquement
                 {% for partition in form.groups_tree %}
                     <tr>