diff --git a/apps/course/models.py b/apps/course/models.py
index b11156f4..b2233bd4 100644
--- a/apps/course/models.py
+++ b/apps/course/models.py
@@ -124,10 +124,11 @@ class Course(BaseModel, DeactivatedMixin):
 
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(unidecode(self.title[:90]))
-
-        if Course.objects.filter(slug=self.slug).exclude(id=self.id).exists():
-            self.slug += str(uuid4())[-3:]
+            slug = slugify(unidecode(self.title[:90]))
+            self.slug = slug
+            if self.slug:
+                while Course.objects.filter(slug=self.slug).exclude(id=self.id).exists():
+                    self.slug = slug + str(uuid4())[-4:]
 
         return super().save()