diff --git a/stages/views.py b/stages/views.py
index dd64d12..9db1e15 100644
--- a/stages/views.py
+++ b/stages/views.py
@@ -177,6 +177,7 @@ class StudentSummaryView(DetailView):
                 pass
             else:
                 context['age_for_stage'] = self.object.age_at(period.start_date)
+                context['age_style'] = 'under_17' if (int(context['age_for_stage'].split()[0]) < 17) else ''
         return context
 
 
diff --git a/templates/attribution.html b/templates/attribution.html
index 0fdbbf3..c9bc996 100644
--- a/templates/attribution.html
+++ b/templates/attribution.html
@@ -17,6 +17,7 @@
   div#student_detail { float:left; width: 40%; margin: 1em; padding: 0.5em; border: 3px solid red; min-height: 4em; border-radius: 8px; }
   div#previous_stages { background-color: #EEE; border-radius: 4px; }
   ul#previous_stages_list { display: none; padding-left: 1.5em;}
+  span.under_17 { color: red; }
 
   div#corp_detail { float:right; width: 40%; margin: 1em; padding: 0.5em; border: 3px solid red; min-height: 4em; border-radius: 8px; }
   div#corp_total, div#student_total { font-style: italic; color: gray; }
diff --git a/templates/student_summary.html b/templates/student_summary.html
index 26ad8eb..b9600fa 100644
--- a/templates/student_summary.html
+++ b/templates/student_summary.html
@@ -12,5 +12,6 @@
 <div id="summary">
   {{ object.first_name }} {{ object.last_name }}<br>
   {{ object.pcode }} {{ object.city }}<br>
-  Date de naissance: {{ object.birth_date }} {% if age_for_stage %}(<span title="Âge au début du stage">{{ age_for_stage }}){% endif %}</span>
+  Date de naissance: {{ object.birth_date }}
+  {% if age_for_stage %}(<span title="Âge au début du stage" class="{{ age_style }}">{{ age_for_stage }}</span>){% endif %}
 </div>