diff --git a/_tour/variances.md b/_tour/variances.md
index 7040a9cae..87fc6029a 100644
--- a/_tour/variances.md
+++ b/_tour/variances.md
@@ -180,7 +180,7 @@ catSerializer.serialize(Cat("Felix"))
 abstract class Serializer[-A]:
   def serialize(a: A): String
 
-val animalSerializer: Serializer[Animal] = Serializer[Animal]():
+val animalSerializer: Serializer[Animal] = new Serializer[Animal]():
   def serialize(animal: Animal): String = s"""{ "name": "${animal.name}" }"""
 
 val catSerializer: Serializer[Cat] = animalSerializer