diff --git a/pallets/parachain-system/src/migration.rs b/pallets/parachain-system/src/migration.rs
index 2dd4f21beab2..4828f8eb3aca 100644
--- a/pallets/parachain-system/src/migration.rs
+++ b/pallets/parachain-system/src/migration.rs
@@ -25,7 +25,9 @@ pub fn on_runtime_upgrade<T: Config>() -> Weight {
 	let mut weight: Weight = 0;
 
 	if StorageVersion::get::<Pallet<T>>() == 0 {
-		weight = weight.saturating_add(v1::migrate::<T>());
+		weight = weight
+			.saturating_add(v1::migrate::<T>())
+			.saturating_add(T::DbWeight::get().writes(1));
 		StorageVersion::new(1).put::<Pallet<T>>();
 	}