diff --git a/google/pubsub/v1/pubsub.proto b/google/pubsub/v1/pubsub.proto
index 5ab209bbd6..aa65f9db0b 100644
--- a/google/pubsub/v1/pubsub.proto
+++ b/google/pubsub/v1/pubsub.proto
@@ -795,8 +795,8 @@ message Subscription {
   google.protobuf.Duration topic_message_retention_duration = 17
       [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. An output-only field indicating whether or not the subscription can receive
-  // messages.
+  // Output only. An output-only field indicating whether or not the
+  // subscription can receive messages.
   State state = 19 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
@@ -969,8 +969,8 @@ message BigQueryConfig {
   // subscription's backlog.
   bool drop_unknown_fields = 4;
 
-  // Output only. An output-only field that indicates whether or not the subscription can
-  // receive messages.
+  // Output only. An output-only field that indicates whether or not the
+  // subscription can receive messages.
   State state = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
@@ -1252,25 +1252,25 @@ message StreamingPullResponse {
   // previously received message.
   message AcknowledgeConfirmation {
     // Successfully processed acknowledgement IDs.
-    repeated string ack_ids = 1 [ctype = CORD];
+    repeated string ack_ids = 1;
 
     // List of acknowledgement IDs that were malformed or whose acknowledgement
     // deadline has expired.
-    repeated string invalid_ack_ids = 2 [ctype = CORD];
+    repeated string invalid_ack_ids = 2;
 
     // List of acknowledgement IDs that were out of order.
-    repeated string unordered_ack_ids = 3 [ctype = CORD];
+    repeated string unordered_ack_ids = 3;
   }
 
   // Acknowledgement IDs sent in one or more previous requests to modify the
   // deadline for a specific message.
   message ModifyAckDeadlineConfirmation {
     // Successfully processed acknowledgement IDs.
-    repeated string ack_ids = 1 [ctype = CORD];
+    repeated string ack_ids = 1;
 
     // List of acknowledgement IDs that were malformed or whose acknowledgement
     // deadline has expired.
-    repeated string invalid_ack_ids = 2 [ctype = CORD];
+    repeated string invalid_ack_ids = 2;
   }
 
   // Subscription properties sent as part of the response.