diff --git a/pallets/asset-manager/src/benchmarking.rs b/pallets/asset-manager/src/benchmarking.rs
index df7e4969c..fe68e51d7 100644
--- a/pallets/asset-manager/src/benchmarking.rs
+++ b/pallets/asset-manager/src/benchmarking.rs
@@ -93,7 +93,7 @@ benchmarks! {
         let metadata = <T::AssetConfig as AssetConfig<T>>::AssetRegistryMetadata::testing_default();
         Pallet::<T>::register_asset(RawOrigin::Root.into(), location, metadata.clone())?;
         let some_valid_asset_id = <T as Config>::AssetId::from(assets_count);
-    }: _(RawOrigin::Root, some_valid_asset_id, metadata.clone())
+    }: _(RawOrigin::Root, some_valid_asset_id, metadata.clone().into())
     verify {
         assert_last_event::<T>(Event::AssetMetadataUpdated { asset_id: some_valid_asset_id, metadata }.into());
     }
diff --git a/pallets/asset-manager/src/lib.rs b/pallets/asset-manager/src/lib.rs
index 51af3f703..9d40e6b1a 100644
--- a/pallets/asset-manager/src/lib.rs
+++ b/pallets/asset-manager/src/lib.rs
@@ -449,7 +449,7 @@ pub mod pallet {
         pub fn update_asset_metadata(
             origin: OriginFor<T>,
             asset_id: T::AssetId,
-            metadata: <T::AssetConfig as AssetConfig<T>>::AssetRegistryMetadata,
+            metadata: <<T as Config>::AssetConfig as AssetConfig<T>>::StorageMetadata,
         ) -> DispatchResult {
             T::ModifierOrigin::ensure_origin(origin)?;
             ensure!(
@@ -461,11 +461,14 @@ pub mod pallet {
                 Error::<T>::UpdateNonExistentAsset
             );
             <T::AssetConfig as AssetConfig<T>>::AssetRegistry::update_asset_metadata(
-                &asset_id,
-                metadata.clone().into(),
+                &asset_id, metadata,
             )?;
-            AssetIdMetadata::<T>::insert(asset_id, &metadata);
-            Self::deposit_event(Event::<T>::AssetMetadataUpdated { asset_id, metadata });
+            let updated_registry_metadata = Self::asset_id_metadata(asset_id)
+                .expect("we just successfully updated the asset, so it exists. qed");
+            Self::deposit_event(Event::<T>::AssetMetadataUpdated {
+                asset_id,
+                metadata: updated_registry_metadata,
+            });
             Ok(())
         }
 
diff --git a/pallets/asset-manager/src/tests.rs b/pallets/asset-manager/src/tests.rs
index 67a6329bd..d3da6f3d4 100644
--- a/pallets/asset-manager/src/tests.rs
+++ b/pallets/asset-manager/src/tests.rs
@@ -78,7 +78,7 @@ fn wrong_modifier_origin_should_not_work() {
             AssetManager::update_asset_metadata(
                 Origin::signed([3u8; 32].into()),
                 0,
-                asset_metadata
+                asset_metadata.into()
             ),
             BadOrigin
         );
@@ -166,14 +166,14 @@ fn update_asset() {
             AssetManager::update_asset_metadata(
                 Origin::root(),
                 native_asset_id,
-                new_metadata.clone(),
+                new_metadata.clone().into(),
             ),
             Error::<Runtime>::CannotUpdateNativeAssetMetadata
         );
         assert_ok!(AssetManager::update_asset_metadata(
             Origin::root(),
             asset_id,
-            new_metadata.clone(),
+            new_metadata.clone().into(),
         ),);
         assert_eq!(Assets::name(&asset_id), new_name);
         assert_eq!(Assets::symbol(&asset_id), new_symbol);
@@ -205,7 +205,7 @@ fn update_asset() {
             AssetManager::update_asset_metadata(
                 Origin::root(),
                 next_asset_id,
-                new_metadata.clone()
+                new_metadata.clone().into()
             ),
             Error::<Runtime>::UpdateNonExistentAsset
         );
diff --git a/primitives/manta/src/assets.rs b/primitives/manta/src/assets.rs
index f202120e6..edd792e19 100644
--- a/primitives/manta/src/assets.rs
+++ b/primitives/manta/src/assets.rs
@@ -106,7 +106,7 @@ pub trait AssetRegistry: AssetIdType + BalanceType {
 
     /// Update asset metadata by `AssetId`.
     ///
-    /// * `asset_id`: the asset id to be created.
+    /// * `asset_id`: the asset id to be updated.
     /// * `metadata`: the metadata that the implementation layer stores.
     fn update_asset_metadata(
         asset_id: &Self::AssetId,
@@ -120,7 +120,7 @@ where
     C: Config,
 {
     /// Metadata type that required in token storage: e.g. AssetMetadata in Pallet-Assets.
-    type StorageMetadata: From<Self::AssetRegistryMetadata>;
+    type StorageMetadata: From<Self::AssetRegistryMetadata> + Parameter;
 
     /// The Asset Metadata type stored in this pallet.
     type AssetRegistryMetadata: AssetMetadata<Balance = Self::Balance> + Parameter + TestingDefault;