diff --git a/biscuit/core/anonymizers.py b/biscuit/core/anonymizers.py
index 287dd6b2bb68a1907887a68efebcee586e3fe760..f503764271138532db22d425a1c5009d4f2ad1bb 100644
--- a/biscuit/core/anonymizers.py
+++ b/biscuit/core/anonymizers.py
@@ -12,7 +12,7 @@ class PersonAnonymizer(BaseAnonymizer):
         ('first_name', faker.first_name),
         ('last_name', faker.last_name),
         ('additional_name', ''),
-        ('short_name', lambda **kwargs: faker.pystr(min_chars=2, max_chars=4, **kwargs)),
+        ('short_name', lambda **kwargs: faker.pystr(min_chars=3, max_chars=5, **kwargs)),
         ('street', faker.street_name),
         ('housenumber', faker.building_number),
         ('postal_code', faker.postcode),