diff --git a/pkg/proto/nbcontract/v1/const.go b/pkg/proto/nbcontract/v1/const.go
index 5b3365ff82f..222272369a9 100644
--- a/pkg/proto/nbcontract/v1/const.go
+++ b/pkg/proto/nbcontract/v1/const.go
@@ -1,7 +1,7 @@
 package nbcontractv1
 
 const (
-	// Follow the semantic versioning format. <Major>.<Minor>.<Patch>
+	// Follow the semantic versioning format. <Major>.<Minor>.<Patch>.
 	contractVersion = "v0"
 )