diff --git a/dex/pair/src/lib.rs b/dex/pair/src/lib.rs
index e67010d67..76c3c1f5b 100644
--- a/dex/pair/src/lib.rs
+++ b/dex/pair/src/lib.rs
@@ -124,3 +124,4 @@ pub trait Pair<ContractReader>:
         self.lp_token_identifier().set(&token_identifier);
     }
 }
+