diff --git a/server/users/licenses.py b/server/users/licenses.py
index 5d42085f..0f3c35af 100644
--- a/server/users/licenses.py
+++ b/server/users/licenses.py
@@ -10,7 +10,8 @@ MYSKILLBOX_LICENSES = {
         'edition': STUDENT_KEY,
         'duration': 4 * 365,
         'name': 'Student 4 years',
-        'platform': MYSKILLBOX_PLATFORM
+        'platform': MYSKILLBOX_PLATFORM,
+        'default': True
     },
     "978-3-0355-1860-3": {
         'edition': STUDENT_KEY,
@@ -40,7 +41,8 @@ MYSKILLBOX_LICENSES = {
         'edition': STUDENT_KEY,
         'duration': 30,
         'name': 'Student test 1 month',
-        'platform': MYKV_PLATFORM
+        'platform': MYKV_PLATFORM,
+        'default': True
     },
     '978-3-0355-2188-7': {
         'edition': TEACHER_KEY,
@@ -56,8 +58,18 @@ def get_license_dict():
         k: v for k, v in MYSKILLBOX_LICENSES.items() if v.get('platform') == settings.PLATFORM
     }
 
+
 def get_valid_isbns():
     return list(get_license_dict().keys())
 
+
 def is_myskillbox_product(isbn):
     return isbn in get_valid_isbns()
+
+
+def get_default_isbn():
+    defaults = {
+        k: v for k, v in get_license_dict().items() if v.get('default', False)
+    }
+    default_isbns = list(defaults.keys())
+    return default_isbns[0]
diff --git a/server/users/models.py b/server/users/models.py
index f7056619..7057057f 100644
--- a/server/users/models.py
+++ b/server/users/models.py
@@ -15,7 +15,7 @@ from django.utils.timezone import is_aware, make_aware
 from django.utils.translation import ugettext_lazy as _
 
 from core.mixins import GraphqlNodeMixin
-from users.licenses import get_license_dict
+from users.licenses import get_license_dict, get_default_isbn
 from users.managers import LicenseManager, RoleManager, UserManager, UserRoleManager
 
 DEFAULT_SCHOOL_ID = 1
@@ -311,7 +311,7 @@ class License(models.Model):
     order_id = models.IntegerField(blank=False, null=False, default=-1)
     raw = models.TextField(default='')
     isbn = models.CharField(max_length=50, blank=False, null=False,
-                            default=list(licenses.keys())[0])  # student license
+                            default=get_default_isbn())  # student license
     created_at = models.DateTimeField(auto_now_add=True)
     hep_created_at = models.DateTimeField(default=AWARE_NO_DATETIME)
     new_api_raw = models.TextField(default='')