diff --git a/src/main/proto/wfa/measurement/api/v2alpha/exchange_workflow.proto b/src/main/proto/wfa/measurement/api/v2alpha/exchange_workflow.proto
index 4f1e512b601..80be12bee27 100644
--- a/src/main/proto/wfa/measurement/api/v2alpha/exchange_workflow.proto
+++ b/src/main/proto/wfa/measurement/api/v2alpha/exchange_workflow.proto
@@ -145,7 +145,7 @@ message ExchangeWorkflow {
       // This is a serialized instance of private_membership.batch.Parameters.
       bytes serialized_parameters = 1;
       int32 encrypted_query_bundle_file_count = 2;
-      int32 query_id_and_panelist_key_file_count = 3;
+      int32 query_id_to_ids_file_count = 3;
       int32 num_shards = 4;
       int32 num_buckets_per_shard = 5;
       // Consider making this optional once its not experimental