diff --git a/django/db/models/base.py b/django/db/models/base.py
index bc41149a09a..34fb0ab0b41 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -300,7 +300,7 @@ class ModelBase(type):
                 cls.add_to_class(mgr_name, new_manager)
 
     def add_to_class(cls, name, value):
-        # We should call the contirbute_to_class method only if it's bound
+        # We should call the contribute_to_class method only if it's bound
         if not inspect.isclass(value) and hasattr(value, 'contribute_to_class'):
             value.contribute_to_class(cls, name)
         else: