diff --git a/letsencrypt/client/acme.py b/letsencrypt/client/acme.py
index 1a04cdc9d..392546b29 100644
--- a/letsencrypt/client/acme.py
+++ b/letsencrypt/client/acme.py
@@ -10,18 +10,19 @@ from letsencrypt.client import le_util
 
 SCHEMATA = dict([
     (schema, json.load(open(pkg_resources.resource_filename(
-        __name__, "schemata/%s.json" % schema))))
-    for schema in ["authorization",
-                   "authorizationRequest",
-                   "certificate",
-                   "certificateRequest",
-                   "challenge",
-                   "challengeRequest",
-                   "defer",
-                   "error",
-                   "revocation",
-                   "revocationRequest",
-                   "statusRequest"]
+        __name__, "schemata/%s.json" % schema)))) for schema in [
+            "authorization",
+            "authorizationRequest",
+            "certificate",
+            "certificateRequest",
+            "challenge",
+            "challengeRequest",
+            "defer",
+            "error",
+            "revocation",
+            "revocationRequest",
+            "statusRequest",
+        ]
 ])