diff --git a/substrate/frame/grandpa/src/lib.rs b/substrate/frame/grandpa/src/lib.rs
index 67cf98413640c..7c5f8deb0be70 100644
--- a/substrate/frame/grandpa/src/lib.rs
+++ b/substrate/frame/grandpa/src/lib.rs
@@ -57,6 +57,7 @@ use sp_staking::{offence::OffenceReportSystem, SessionIndex};
 mod default_weights;
 mod equivocation;
 pub mod migrations;
+pub mod weights;
 
 #[cfg(any(feature = "runtime-benchmarks", test))]
 mod benchmarking;