diff --git a/juniper/src/types/base.rs b/juniper/src/types/base.rs
index 39fd08de..f1333f96 100644
--- a/juniper/src/types/base.rs
+++ b/juniper/src/types/base.rs
@@ -234,7 +234,7 @@ impl GraphQLType for User
 ```
 
 */
-pub trait GraphQLType<S = DefaultScalarValue>: Sized
+pub trait GraphQLType<S>: Sized
 where
     S: ScalarValue,
 {