Diffstat (limited to 'src/effect.rs')
-rw-r--r--src/effect.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/effect.rs b/src/effect.rs
index a994bcd..6e50862 100644
--- a/src/effect.rs
+++ b/src/effect.rs
@@ -40,7 +40,7 @@ use crate::{higher_ranked_trait, higher_ranked_type, hkt::Marker, never::Never};
pub trait Ss: Send + Sync {}
-impl<T: Send + Sync> Ss for T {}
+impl<T: ?Sized + Send + Sync> Ss for T {}
/// Type class for type erased higher-ranked effective types.
#[allow(non_snake_case)]