diff --git a/acme/acme/messages.py b/acme/acme/messages.py
index 2d82ccb5e..1a7463fba 100644
--- a/acme/acme/messages.py
+++ b/acme/acme/messages.py
@@ -158,7 +158,7 @@ class Directory(jose.JSONDeSerializable):
         try:
             return self[name.replace('_', '-')]
         except KeyError as error:
-            raise AttributeError(error.message)
+            raise AttributeError(str(error))
 
     def __getitem__(self, name):
         try:
diff --git a/tests/boulder-integration.sh b/tests/boulder-integration.sh
index 8a4f715ea..3a1c8748a 100755
--- a/tests/boulder-integration.sh
+++ b/tests/boulder-integration.sh
@@ -4,9 +4,7 @@
 # instance (see ./boulder-start.sh).
 #
 # Environment variables:
-#   SERVER: Passed as "letsencrypt --server" argument. Boulder
-#           monolithic defaults to :4000, AMQP defaults to :4300. This
-#           script defaults to monolithic.
+#   SERVER: Passed as "letsencrypt --server" argument.
 #
 # Note: this script is called by Boulder integration test suite!
 
diff --git a/tests/integration/_common.sh b/tests/integration/_common.sh
index 8656b8518..c8b142cf2 100755
--- a/tests/integration/_common.sh
+++ b/tests/integration/_common.sh
@@ -13,7 +13,7 @@ export root store_flags
 
 letsencrypt_test () {
     letsencrypt \
-        --server "${SERVER:-http://localhost:4000/acme/new-reg}" \
+        --server "${SERVER:-http://localhost:4000/directory}" \
         --no-verify-ssl \
         --dvsni-port 5001 \
         --simple-http-port 5001 \