diff --git a/rest_framework/exceptions.py b/rest_framework/exceptions.py
index 99b03eec8..09f111102 100644
--- a/rest_framework/exceptions.py
+++ b/rest_framework/exceptions.py
@@ -1,7 +1,7 @@
 """
 Handled exceptions raised by REST framework.
 
-In addition Django's built in 403 and 404 exceptions are handled.
+In addition, Django's built in 403 and 404 exceptions are handled.
 (`django.http.Http404` and `django.core.exceptions.PermissionDenied`)
 """
 import math