diff --git a/core/models.py b/core/models.py
index 2e544497..b817a947 100644
--- a/core/models.py
+++ b/core/models.py
@@ -80,6 +80,7 @@ class Child(models.Model):
         verbose_name=_('Birth date')
     )
     slug = models.SlugField(
+        blank=False,
         editable=False,
         max_length=100,
         unique=True,