diff --git a/jarvis/followup/migrations/0060_alter_injury_nb_week_off.py b/jarvis/followup/migrations/0060_alter_injury_nb_week_off.py
new file mode 100644
index 0000000..87755e5
--- /dev/null
+++ b/jarvis/followup/migrations/0060_alter_injury_nb_week_off.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2 on 2023-11-14 12:49
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("followup", "0059_alter_injury_injury_type"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="injury",
+            name="nb_week_off",
+            field=models.SmallIntegerField(default=0, verbose_name="# week off"),
+        ),
+    ]
diff --git a/jarvis/followup/models.py b/jarvis/followup/models.py
index bbb9845..1b64031 100644
--- a/jarvis/followup/models.py
+++ b/jarvis/followup/models.py
@@ -238,9 +238,7 @@ class Injury(Markdownizable, Seasonisable):
     mechanism = models.PositiveSmallIntegerField(
         choices=INJURY_MECHANISM_CHOICE, verbose_name="Mechanism"
     )
-    nb_week_off = models.SmallIntegerField(
-        blank=True, null=True, verbose_name="# week off"
-    )
+    nb_week_off = models.SmallIntegerField(default=0, verbose_name="# week off")
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)