diff --git a/equipment/fields.py b/equipment/fields.py
index db5546f..2b63d52 100644
--- a/equipment/fields.py
+++ b/equipment/fields.py
@@ -60,6 +60,7 @@ class IdField(models.BigIntegerField):
     def __init__(self, separator=",", *args, **kwargs):
         self.separator = separator
         super(IdField, self).__init__(*args, **kwargs)
+        self.validators = [] # TODO : validateurs pertinents
 
     def deconstruct(self):
         name, path, args, kwargs = super(IdField, self).deconstruct()
diff --git a/equipment/migrations/0001_initial.py b/equipment/migrations/0001_initial.py
index c985556..95329c2 100644
--- a/equipment/migrations/0001_initial.py
+++ b/equipment/migrations/0001_initial.py
@@ -5,6 +5,7 @@ from __future__ import unicode_literals
 import datetime
 from django.db import migrations, models
 import django.db.models.deletion
+import equipment.fields
 
 
 class Migration(migrations.Migration):
@@ -81,7 +82,7 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('remark', models.TextField(verbose_name='remarque sur le matériel')),
-                ('ide', models.PositiveSmallIntegerField(verbose_name='id')),
+                ('ids', equipment.fields.IdField()),
                 ('is_broken', models.BooleanField()),
                 ('is_lost', models.BooleanField()),
                 ('equipment', models.ForeignKey(help_text='Matériel concerné par la remarque', on_delete=django.db.models.deletion.CASCADE, related_name='remarks', to='equipment.Equipment')),
@@ -97,7 +98,7 @@ class Migration(migrations.Migration):
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('date', models.DateField(default=datetime.date.today, verbose_name='date')),
                 ('remark', models.TextField(verbose_name='remarque sur la révision')),
-                ('ide', models.PositiveSmallIntegerField(verbose_name='id')),
+                ('ids', equipment.fields.IdField()),
                 ('equipment', models.ForeignKey(help_text='Matériel concerné par les révisions', on_delete=django.db.models.deletion.CASCADE, related_name='revisions', to='equipment.Equipment')),
             ],
             options={
diff --git a/equipment/models.py b/equipment/models.py
index 93f4063..37b296b 100644
--- a/equipment/models.py
+++ b/equipment/models.py
@@ -112,7 +112,7 @@ class EquipmentRemark(models.Model):
                 related_name="remarks",
                 help_text=_("Matériel concerné par la remarque"),
             )
-    ide = models.PositiveSmallIntegerField(_("id")) 
+    ids = IdField()
     is_broken = models.BooleanField()
     is_lost = models.BooleanField()
 
@@ -136,7 +136,7 @@ class EquipmentRevision(models.Model):
                 help_text=_("Matériel concerné par les révisions"),
             )
     remark = models.TextField(_("remarque sur la révision"))
-    ide = models.PositiveSmallIntegerField(_("id")) 
+    ids = IdField()
 
     class Meta:
         verbose_name = _("révision de matériel")