diff --git a/pymongo/auth_aws.py b/pymongo/auth_aws.py
index e57bec324..ff07a12e7 100644
--- a/pymongo/auth_aws.py
+++ b/pymongo/auth_aws.py
@@ -21,6 +21,9 @@ try:
                                   PyMongoAuthAwsError)
     _HAVE_MONGODB_AWS = True
 except ImportError:
+    class AwsSaslContext(object):
+        def __init__(self, credentials):
+            pass
     _HAVE_MONGODB_AWS = False
 
 import bson