diff --git a/moto/core/authentication.py b/moto/core/authentication.py
index 88e1b6b4..54f33b73 100644
--- a/moto/core/authentication.py
+++ b/moto/core/authentication.py
@@ -10,7 +10,7 @@ from six import string_types
 
 from moto.iam.models import ACCOUNT_ID, Policy
 from moto.iam import iam_backend
-from moto.core.exceptions import SignatureDoesNotMatchError, AccessDeniedError, InvalidClientTokenIdError, InvalidAccessKeyIdError, AuthFailureError
+from moto.core.exceptions import SignatureDoesNotMatchError, AccessDeniedError, InvalidClientTokenIdError, AuthFailureError
 from moto.s3.exceptions import BucketAccessDeniedError, S3AccessDeniedError, BucketInvalidTokenError, S3InvalidTokenError, S3InvalidAccessKeyIdError, BucketInvalidAccessKeyIdError
 from moto.sts import sts_backend
 
diff --git a/moto/core/exceptions.py b/moto/core/exceptions.py
index e18797fa..58db5ed7 100644
--- a/moto/core/exceptions.py
+++ b/moto/core/exceptions.py
@@ -97,15 +97,6 @@ class AccessDeniedError(RESTError):
             ))
 
 
-class InvalidAccessKeyIdError(RESTError):
-    code = 400
-
-    def __init__(self):
-        super(InvalidAccessKeyIdError, self).__init__(
-            'InvalidAccessKeyId',
-            "The AWS Access Key Id you provided does not exist in our records.")
-
-
 class AuthFailureError(RESTError):
     code = 400