diff --git a/pallets/pass/src/lib.rs b/pallets/pass/src/lib.rs
index 0d52506..44ab8bc 100644
--- a/pallets/pass/src/lib.rs
+++ b/pallets/pass/src/lib.rs
@@ -392,8 +392,7 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
     }
 
     fn task_name_from_session_key(session_key: &T::AccountId) -> TaskName {
-        use sp_runtime::format;
-        blake2_256(format!("remove_session_key_{:?}", &session_key.encode()).as_bytes())
+        blake2_256(&("remove_session_key", session_key).encode())
     }
 
     /// Infallibly cancels an already scheduled session key removal