diff --git a/apps/course/models.py b/apps/course/models.py
index 10175b21..69eff32b 100644
--- a/apps/course/models.py
+++ b/apps/course/models.py
@@ -35,7 +35,7 @@ class Course(models.Model):
         (ARCHIVED, 'Archived'),
     )
     slug = models.SlugField(
-        allow_unicode=True,
+        allow_unicode=True, default=default_slug,
         max_length=100, unique=True, db_index=True,
     )
     author = models.ForeignKey(