diff --git a/proto/cmp/services/book/v2/mint.proto b/proto/cmp/services/book/v2/mint.proto
index 9b0fe99a..86952ecd 100644
--- a/proto/cmp/services/book/v2/mint.proto
+++ b/proto/cmp/services/book/v2/mint.proto
@@ -81,7 +81,7 @@ message MintResponse {
   // (buyer) bot after the buy operation and passed to the distributor middleware
   // (partner plugin) in the mint response.
   //
-  // This fielld is not meant for the supplier.
+  // This field is not meant for the supplier.
   string buy_transaction_id = 11;
 }