diff --git a/content/docs/rfcs/13/README.md b/content/docs/rfcs/13/README.md
index 08f0a2c7..3e830c63 100644
--- a/content/docs/rfcs/13/README.md
+++ b/content/docs/rfcs/13/README.md
@@ -82,8 +82,8 @@ message StoreQueryRequest {
   // Filter criteria for content-filtered queries
   optional string pubsub_topic = 10;
   repeated string content_topics = 11;
-  optional int64 time_start = 12;
-  optional int64 time_end = 13;
+  optional sint64 time_start = 12;
+  optional sint64 time_end = 13;
 
   // List of key criteria for lookup queries
   repeated bytes message_hashes = 20 // Message hashes (keys) to lookup