diff --git a/substrate/srml/session/src/lib.rs b/substrate/srml/session/src/lib.rs
index 1f9f60c76c..1dfd0828cd 100644
--- a/substrate/srml/session/src/lib.rs
+++ b/substrate/srml/session/src/lib.rs
@@ -240,8 +240,7 @@ pub trait SelectInitialValidators<ValidatorId> {
 }
 
 /// Implementation of `SelectInitialValidators` that does nothing.
-pub struct ConfigValidators;
-impl<V> SelectInitialValidators<V> for ConfigValidators {
+impl<V> SelectInitialValidators<V> for () {
 	fn select_initial_validators() -> Option<Vec<V>> {
 		None
 	}
diff --git a/substrate/srml/session/src/mock.rs b/substrate/srml/session/src/mock.rs
index 68fa95524a..adb3772051 100644
--- a/substrate/srml/session/src/mock.rs
+++ b/substrate/srml/session/src/mock.rs
@@ -139,7 +139,7 @@ impl Trait for Test {
 	type ValidatorIdOf = ConvertInto;
 	type Keys = UintAuthorityId;
 	type Event = ();
-	type SelectInitialValidators = crate::ConfigValidators;
+	type SelectInitialValidators = ();
 }
 
 #[cfg(feature = "historical")]