diff --git a/test-java-latest/src/test/scala/msgpack4z/Spec.scala b/test-java-latest/src/test/scala/msgpack4z/Spec.scala
index f4582451..c5ffc09e 100644
--- a/test-java-latest/src/test/scala/msgpack4z/Spec.scala
+++ b/test-java-latest/src/test/scala/msgpack4z/Spec.scala
@@ -1,6 +1,6 @@
 package msgpack4z
 
-trait JavaSpec { _: SpecBase =>
+trait JavaSpec { self: SpecBase =>
   override protected[this] def packer() = new MsgpackJavaPacker()
   override protected[this] def unpacker(bytes: Array[Byte]) = MsgpackJavaUnpacker.defaultUnpacker(bytes)
 }