diff --git a/moto/ec2/models.py b/moto/ec2/models.py
index 6d6013d42..f022fdd74 100644
--- a/moto/ec2/models.py
+++ b/moto/ec2/models.py
@@ -4,7 +4,7 @@ from moto.core import BaseBackend
 from .utils import random_instance_id, random_reservation_id
 
 
-class MockEC2(BaseBackend):
+class EC2Backend(BaseBackend):
     base_url = "https://ec2.us-east-1.amazonaws.com"
 
     def __init__(self):
@@ -41,4 +41,4 @@ class MockEC2(BaseBackend):
         return self.reservations.values()
 
 
-ec2_backend = MockEC2()
\ No newline at end of file
+ec2_backend = EC2Backend()
\ No newline at end of file
diff --git a/moto/s3/models.py b/moto/s3/models.py
index c24fb89c3..c7c394959 100644
--- a/moto/s3/models.py
+++ b/moto/s3/models.py
@@ -22,7 +22,7 @@ class FakeBucket(object):
         self.keys = []
 
 
-class MockS3(BaseBackend):
+class S3Backend(BaseBackend):
     base_url = "https://(.+).s3.amazonaws.com"
 
     def __init__(self):
@@ -54,4 +54,4 @@ class MockS3(BaseBackend):
         return found_key
 
 
-s3_backend = MockS3()
+s3_backend = S3Backend()