diff --git a/src/test/scala/com/github/fluency03/blockchain/misc/SerdeTest.scala b/src/test/scala/com/github/fluency03/blockchain/misc/SerdeTest.scala
index c9fe997..5d10155 100644
--- a/src/test/scala/com/github/fluency03/blockchain/misc/SerdeTest.scala
+++ b/src/test/scala/com/github/fluency03/blockchain/misc/SerdeTest.scala
@@ -2,7 +2,7 @@ package com.github.fluency03.blockchain.misc
 
 import org.scalatest.{FlatSpec, Matchers}
 
-class SerdeTest extends FlatSpec with Matchers with {
+class SerdeTest extends FlatSpec with Matchers {